Identifying The Determinants Of Tourist's Environmentally Responsible Behavior: Extending The Cab Model With Generativity In Bromo Tengger Semeru National Park

Authors

DOI:

https://doi.org/10.47608/jki.v20i12026.203-228

Keywords:

Ecotourism perceptions, Environmentally responsible behavior, Generativity, Mountain conservation area, Satisfaction

Abstract

Tourism development in rural mountain protected areas can bring economic benefits to local communities while increasing environmental pressure on fragile ecosystems. In Bromo Tengger Semeru National Park (BTSNP), rising visitor numbers have caused environmental problems such as littering, wildfires, and vegetation disturbance. This study aims to examine how ecotourism perception, satisfaction, and generativity influence environmentally responsible behavior (ERB) among visitors in mountain conservation areas facing increasing ecological pressure. Grounded in an extended Cognitive-Affective-Behavior (CAB) framework, this study integrates generativity as a psychosocial driver of ERB. Data were collected from 287 tourists through structured questionnaires and analyzed using SEM and multi-group analysis (MGA) to examine structural relationships and intergenerational differences. The results show that generativity significantly influences ERB, emerging as the strongest predictor in the model. Ecotourism perception (EP) significantly increases tourist satisfaction but does not directly influence ERB. Satisfaction neither directly affects ERB nor mediates the relationship between EP and ERB. MGA further indicates that the relationship between generativity and ERB was significant only among Gen Y tourists, although this difference should be interpreted cautiously. These findings challenge the linear assumption of the CAB framework by showing that generativity, as a future-oriented factor, plays a more important role than cognitive and affective evaluation in shaping ERB. They also offer practical implications for promoting long-term socio-ecological management through targeted visitor engagement and strengthened governance strategies in protected mountain areas.

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References

Afridi, S. A., Khan, W., Haider, M., Shahjehan, A., & Afsar, B. (2021). Generativity and Green Purchasing Behavior: Moderating Role of Man-Nature Orientation and Perceived Behavioral Control. Sage Open, 11(4), 344–357. https://doi.org/10.1177/21582440211054480

Alisat, S., Norris, J. E., Pratt, M. W., Matsuba, M. K., & McAdams, D. P. (2014). Caring for the Earth: Generativity as a Mediator for the Prediction of Environmental Narratives from Identity Among Activists and Nonactivists. Identity, 14(3), 177–194. https://doi.org/10.1080/15283488.2014.921172

ANTARA. (2023, September 15). Kerusakan akibat karhutla di kawasan Bromo capai 504 hektare. Suara Surabaya. https://www.suarasurabaya.net/kelanakota/2023/kerusakan-akibat-karhutla-di-kawasan-bromo-capai-504-hektare/

Antara News. (2024, February 5). Kunjungan wisatawan ke Bromo pada 2023 capai 368.507 orang. https://www.antaranews.com/berita/3930348/kunjungan-wisatawan-ke-bromo-pada-2023-capai-368507-orang

Askar, H. (2023). Penilaian Status Keberlanjutan Ekowisata Mangrove (Studi Kasus Ekowisata Mangrove Idaman Desa Balang Baru Kecamatan Tarowang Kabupaten Jeneponto). Universitas Hasanuddin.

Benitez, J., Henseler, J., Castillo, A., & Schuberth, F. (2020). How to perform and report an impactful analysis using partial least squares: Guidelines for confirmatory and explanatory IS research. Information & Management, 57(2), 103168. https://doi.org/10.1016/j.im.2019.05.003

Bhatti, M. A., & Alnasser, E. M. (2023). An investigation into the factors of tourists’ environmentally responsible behaviour. https://doi.org/https://hdl.handle.net/10355/98577

Borthakur, M., & Kondasani, R. K. R. (2026). Responsible tourist behavior in ecotourism: the roles of value, satisfaction and intention. Leisure/Loisir, 50(2), 413–436. https://doi.org/10.1080/14927713.2024.2410177

Carvalho Veras, J., Freitas da Costa, M., de Oliveira Campos, P., & Brito da Silva, G. (2023). Generativity, environmental activism, and pride: Antecedents of intention to buy organic food. Journal of Cleaner Production, 418, 138114. https://doi.org/10.1016/j.jclepro.2023.138114

Cheng, T.-M., & Wu, H. C. (2015). How do environmental knowledge, environmental sensitivity, and place attachment affect environmentally responsible behavior? An integrated approach for sustainable island tourism. Journal of Sustainable Tourism, 23(4), 557–576. https://doi.org/10.1080/09669582.2014.965177

Chiu, Y.-T. H., Lee, W.-I., & Chen, T.-H. (2014a). Environmentally responsible behavior in ecotourism: Antecedents and implications. Tourism Management, 40, 321–329. https://doi.org/10.1016/j.tourman.2013.06.013

Chiu, Y.-T. H., Lee, W.-I., & Chen, T.-H. (2014b). Environmentally Responsible Behavior in Ecotourism: Exploring the Role of Destination Image and Value Perception. Asia Pacific Journal of Tourism Research, 19(8), 876–889. https://doi.org/10.1080/10941665.2013.818048

Cohen, J. (2013). Statistical Power Analysis for the Behavioral Sciences. Routledge. https://doi.org/10.4324/9780203771587

Ding, C., & Schuett, M. A. (2020). Predicting the Commitment of Volunteers’ Environmental Stewardship: Does Generativity Play a Role? Sustainability, 12(17), 6802. https://doi.org/10.3390/su12176802

Einolf, C. J. (2014). Stability and change in generative concern: Evidence from a longitudinal survey. Journal of Research in Personality, 51, 54–61. https://doi.org/10.1016/j.jrp.2014.04.003

Grandis, D., Hadi, N., & Meiji, N. H. P. (2023). Peran Taman Nasional Bromo Tengger Semeru (TNBTS) Resort Wonokitri dalam pengelolaan ekowisata Edelweiss Park Desa Wonokitri Kecamatan Tosari Kabupaten Pasuruan. Jurnal Integrasi Dan Harmoni Inovatif Ilmu-Ilmu Sosial (JIHI3S), 3(5), 549–558. https://doi.org/10.17977/um063v3i5p549-558

Guiao, B. G. M., & Lacap, J. P. G. (2022). Effects of Environmental Sustainability Awareness and Altruism on Green Purchase Intention and Brand Evangelism. Asian Journal of Business Research, 12(3). https://doi.org/10.14707/ajbr.220134

Hadiwijoyo, E. (2023). Pola Kebakaran Hutan di Areal Konservasi Studi Kasus di Taman Nasional Bromo Tengger Semeru. Journal of Tropical Silviculture, 14(02), 114–118. https://doi.org/10.29244/j-siltrop.14.02.114-118

Hair, J. F., Hult, G. T. M., Ringle, C. M., & Sarstedt, M. (2022). A Primer on partial least squares structural equation modeling (PLS-SEM): 3rd Ed. Sage Publications Sage CA: Thousand Oaks, CA.

Hair Jr, J. F., Black, W. C., Barr y J. Babin, & Rolph E. Anderson. (2019). Multivariate Data Analysis: 8th Edition. Cengage Learning EMEA.

Hair Jr, J. F., Hult, G. T. M., Ringle, C., & Sarstedt, M. (2017). A primer on partial least squares structural equation modeling (PLS-SEM). Sage publications.

Haliim, W. (2018). Dinamika Implementasi Kebijakan Konservasi Lahan Taman Nasional Bromo Tengger Semeru. Jurnal Borneo Administrator, 14(1), 53–68. https://doi.org/10.24258/jba.v14i1.327

He, X., Hu, D., Swanson, S. R., Su, L., & Chen, X. (2018). Destination perceptions, relationship quality, and tourist environmentally responsible behavior. Tourism Management Perspectives, 28, 93–104. https://doi.org/10.1016/j.tmp.2018.08.001

Henseler, J., Ringle, C. M., & Sarstedt, M. (2015). A new criterion for assessing discriminant validity in variance-based structural equation modeling. Journal of the Academy of Marketing Science, 43(1), 115–135. https://doi.org/10.1007/s11747-014-0403-8

Hu, H., Zhang, J., Wang, C., Yu, P., & Chu, G. (2019). What influences tourists’ intention to participate in the Zero Litter Initiative in mountainous tourism areas: A case study of Huangshan National Park, China. Science of The Total Environment, 657, 1127–1137. https://doi.org/10.1016/j.scitotenv.2018.12.114

Hung, N., Chen, Y.-C., Choy Yung, R. M. P., Kwan, M. S. M., To, A. K. Y., Fung, E. S. M., & Chan, C. L. W. (2024). Generativity in Later-Life: The Interplay Between Retirement Status and Human, Social, and Financial Capital. Journal of Gerontological Social Work, 67(1), 35–54. https://doi.org/10.1080/01634372.2023.2212730

Hutami, N. U., Faisyal, F., Humaera, R., & Hantanty, I. N. T. (2026). From Sunrise Seekers to Village Experience Seekers: A Two Step Clustering Segmentation in Bromo Tengger Semeru National Park. Tamasya : Jurnal Pariwisata Indonesia, 3(1), 20–37. https://doi.org/10.62383/tamasya.v3i1.983

Ivasciuc, I.-S., Sequeira, A., Brown, L., Ispas, A., & Peyré, O. (2025). Digital Natives on the Move: Cross-Cultural Insights into Generation Z’s Travel Preferences. Sustainability, 17(14), 6601. https://doi.org/10.3390/su17146601

Jayasekara, K. D. D. S., Rajapaksa, D., & Gunawardena, U. A. D. P. (2024). Impacts of Environmental Knowledge, Motives, and Behavior on Ecotourism. Sustainability, 16(11), 4724. https://doi.org/10.3390/su16114724

Jiang, J., Gao, B. W., & Su, X. (2022). Antecedents of Tourists’ Environmentally Responsible Behavior: The Perspective of Awe. Frontiers in Psychology, 13, 619815. https://doi.org/10.3389/fpsyg.2022.619815

Jieyao, Z., Kumar, J., & Rasoolimanesh, S. M. (2025). Pro-environmental behavioural intention towards ecotourism: integration of the theory of planned behaviour and theory of interpersonal behaviour. Journal of Ecotourism, 1–38. https://doi.org/10.1080/14724049.2025.2509648

Juvan, E., & Dolnicar, S. (2014). The attitude–behaviour gap in sustainable tourism. Annals of Tourism Research, 48, 76–95. https://doi.org/10.1016/j.annals.2014.05.012

Korlat, S., Ristl, C., & Nikitin, J. (2024). Generativity across adulthood: how nature exposure and future time perspective shape motivation for social and ecological engagement. Australian Journal of Psychology, 76(1), 2428306. https://doi.org/10.1080/00049530.2024.2428306

Kruse, A., & Schmitt, E. (2012). Generativity as a Route to Active Ageing. Current Gerontology and Geriatrics Research, 2012, 1–9. https://doi.org/10.1155/2012/647650

Liberato, P., Aires, C., Liberato, D., & Rocha, Á. (2019). Generation Z and the Technology Use During a Trip (pp. 77–90). https://doi.org/10.1007/978-3-030-16181-1_8

Liu, J., Li, J., Jang, S. S., & Zhao, Y. (2022). Understanding tourists’ environmentally responsible behavior at coastal tourism destinations. Marine Policy, 143, 105178.

Liu, J., Zhao, Y., & Jang, S. (2021). Understanding beach tourists’ environmentally responsible behaviors: An extended value-attitude-behavior model. Journal of Travel & Tourism Marketing, 38(7), 696–709.

M. Wiernik, B., S. Ones, D., & Dilchert, S. (2013). Age and environmental sustainability: a meta-analysis. Journal of Managerial Psychology, 28(7/8), 826–856. https://doi.org/10.1108/JMP-07-2013-0221

Memon, M. A., Ting, H., Ramayah, T., Chuah, F., & Cheah, J.-H. (2017). A Review f The Methodological Misconceptions and Guidelines Related to The Application of Structural Equation Modeling: A Malaysian Scenario. Journal of Applied Structural Equation Modeling, 1(1), i–xiii. https://doi.org/10.47263/JASEM.1(1)01

Mitra, A., & Tripathy, A. (2025). Balancing Mountain Tourism, Cultural Heritage, and Environmental Stability. In M. Valeri, A. Singh, P. K. Tyagi, & A. K. Haghi (Eds.), Balancing Mountain Tourism, Cultural Heritage, and Environmental Stability. IGI Global. https://doi.org/10.4018/979-8-3693-8764-1

Munabi, I. G., & Buwembo, W. (2020). Partial Least Squares Structural Equation Path Modelling Determined Predictors of Students Reported Human Cadaver Dissection Activity. Forensic Medicine and Anatomy Research, 08(02), 18–37. https://doi.org/10.4236/fmar.2020.82003

Nelson, N. A., & Bergeman, C. S. (2021). Development of Generative Concern Across Mid- to Later Life. The Gerontologist, 61(3), 430–438. https://doi.org/10.1093/geront/gnaa115

Nonaka, K., Murayama, H., Murayama, Y., Murayama, S., Kuraoka, M., Nemoto, Y., Kobayashi, E., & Fujiwara, Y. (2023). The Impact of Generativity on Maintaining Higher-Level Functional Capacity of Older Adults: A Longitudinal Study in Japan. International Journal of Environmental Research and Public Health, 20(11), 6015. https://doi.org/10.3390/ijerph20116015

Nurdiani, N. (2014). Teknik Sampling Snowball dalam Penelitian Lapangan. ComTech: Computer, Mathematics and Engineering Applications, 5(2), 1110. https://doi.org/10.21512/comtech.v5i2.2427

Pan, Y., Luo, J. M., & Xu, J. (2022). How generativity affects organic dining intention: Case study of Shanghai. Frontiers in Psychology, 13, 1012550. https://doi.org/10.3389/fpsyg.2022.1012550

Purnomo, P., Oktaviani, A. I., & Nugroho, I. (2018). The Sacred Site: The Conservation Based on The Local People in Tengger Community and Its Potential as Ecotourism Activities. Journal of Socioeconomics and Development, 1(1). https://doi.org/10.31328/jsed.v1i1.517

Qin, Q., & Hsu, C. H. C. (2022). Urban travelers’ pro-environmental behaviors: Composition and role of pro-environmental contextual force. Tourism Management, 92, 104561. https://doi.org/10.1016/j.tourman.2022.104561

Rahmi, N. S., Darmanto, Alfianti, D., Pradita, H. A., Akhiroh, P., & Salamah, S. N. (2024). Tourism resilience post pandemic social, economic and health risks in Bromo Tengger Semeru National Park: Structural model approach. AIP Conference Proceedings, 3047(1), 020001. https://doi.org/10.1063/5.0195352

Raman, R., Das, P., Mandal, S., Vijayan, V., AR, A., & Nedungadi, P. (2024). The impact of Gen Z’s pro-environmental behavior on sustainable development goals through tree planting. Sustainable Futures, 8, 100251. https://doi.org/10.1016/j.sftr.2024.100251

Raza, S. A., Khan, K. A., & Qamar, B. (2024). Understanding the influence of environmental triggers on tourists’ pro-environmental behaviors in the Pakistan’s tourism industry. Journal of Tourism Futures, 10(1), 38–67. https://doi.org/10.1108/JTF-12-2021-0269

Reinilä, E., Saajanaho, M., Fadjukoff, P., Törmäkangas, T., & Kokko, K. (2023). The Development of Generativity in Middle Adulthood and the Beginning of Late Adulthood: A Longitudinal Study from Age 42 to 61. Journal of Adult Development, 30(3), 291–304. https://doi.org/10.1007/s10804-022-09436-1

Ren, L., Li, J., Li, C., & Dang, P. (2021). Can ecotourism contribute to ecosystem? Evidence from local residents’ ecological behaviors. Science of The Total Environment, 757, 143814. https://doi.org/10.1016/j.scitotenv.2020.143814

Roemer, E., Schuberth, F., & Henseler, J. (2021). HTMT2–an improved criterion for assessing discriminant validity in structural equation modeling. Industrial Management & Data Systems, 121(12), 2637–2650. https://doi.org/10.1108/IMDS-02-2021-0082

Satrya, I. D. G., Kaihatu, T. S., & Budidharmanto, L. P. (2023). Millennial Experience Traveling to Ecotourism. Ilomata International Journal of Social Science, 4(2), 303–312. https://doi.org/10.52728/ijss.v4i2.750

Sethy, M. K., & Senapati, A. K. (2023). Perceptions towards ecotourism practice and the willingness to pay: Evidence from Chilika coastal wetland ecosystem, Odisha. International Journal of Geoheritage and Parks, 11(3), 497–513. https://doi.org/10.1016/j.ijgeop.2023.08.001

Shiel, C., Paço, A. do, & Alves, H. (2020). Generativity, sustainable development and green consumer behaviour. Journal of Cleaner Production, 245, 118865. https://doi.org/0.1016/j.jclepro.2019.118865

Simanjuntak, M., & Fitri, I. (2024). Green Consumption: Behavior of Young Indonesian Consumers ― Role of Environmental Knowledge, Responsibility, and Attitudes. Pertanika Journal of Social Sciences and Humanities, 32(3), 1141–1164. https://doi.org/10.47836/pjssh.32.3.16

Stern, P. C. (2000). New Environmental Theories: Toward a Coherent Theory of Environmentally Significant Behavior. Journal of Social Issues, 56(3), 407–424. https://doi.org/10.1111/0022-4537.00175

Soeroso, A. (2022). Ekowisata. Tangerang Selatan: Universitas Terbuka, ISBN:978-623-312-134-7

Tedjakusuma, A. P., & Kulachai, W. (2026). ChatGPT as a Real-Time Travel Companion: During-Trip Support and Tourist Satisfaction. Tourism and Hospitality, 7(1), 20. https://doi.org/10.3390/tourhosp7010020

Timilsina, R. R., Kotani, K., & Kamijo, Y. (2019). Generativity and social value orientation between rural and urban societies in a developing country. Futures, 105, 124–132. https://doi.org/10.1016/j.futures.2018.09.003

Tseng, Y.-H., Ku, C.-M., Huang, W.-S., Huang, C.-C., Wu, H. C., & Hsieh, C.-M. (2024). Determinants of Forest Recreation Visitors’ Environmentally Responsible Behavior: The Moderating Role of Family Structure. Forests, 15(11), 1840. https://doi.org/10.3390/f15111840

Villar, F., Lawford, H. L., & Pratt, M. W. (Eds.). (2024). The Development of Generativity across Adulthood. Oxford University PressOxford. https://doi.org/10.1093/9780191966309.001.0001

Villodre, M., Arnaiz-Schmitz, C., & Schmitz, M. F. (2023). Landscape conservation in the natural-rural interface. A social-ecological approach in Natural Parks of Andalusia (Spain). Landscape Ecology, 38(12), 3517–3535. https://doi.org/10.1007/s10980-023-01699-7

Walia, S. K., & Jasrotia, A. (2021). Imminent future of Millennial generations. In Millennials, Spirituality and Tourism (pp. 268–275). Routledge. https://doi.org/10.4324/9781003170631-20

Wang, C., Zhang, J., Yu, P., & Hu, H. (2018). The theory of planned behavior as a model for understanding tourists’ responsible environmental behaviors: The moderating role of environmental interpretations. Journal of Cleaner Production, 194, 425–434. https://doi.org/10.1016/j.jclepro.2018.05.171

Wang, G., Yao, Y., Ren, L., Zhang, S., & Zhu, M. (2023). Examining the role of generativity on tourists’ environmentally responsible behavior: An inter-generational comparison. Journal of Hospitality and Tourism Management, 57, 303–314. https://doi.org/10.1016/j.jhtm.2023.10.008

Wang, H., Tong, Y., & Zeng, H. (2025). Driving tourists’ pro-environmental behaviour through heritage interpretation messages. Npj Heritage Science, 13(1), 182. https://doi.org/10.1038/s40494-025-01731-w

Wang, J., Wang, S., Wang, H., Zhang, Z., & Ru, X. (2021). Examining when and how perceived sustainability-related climate influences pro-environmental behaviors of tourism destination residents in China. Journal of Hospitality and Tourism Management, 48, 357–367. https://doi.org/10.1016/j.jhtm.2021.07.008

Wang, Y., Zhao, R., Yan, Z., Wang, M., Pan, Y., & Wu, R. (2023). A comparative study of environmental responsibility behavior in ecotourism from the perceptions of residents and tourists: A case of Qilian Mountains National Park in China. PLOS ONE, 18(2), e0281119. https://doi.org/10.1371/journal.pone.0281119

Wells, V. K., Taheri, B., Gregory-Smith, D., & Manika, D. (2016). The role of generativity and attitudes on employees home and workplace water and energy saving behaviours. Tourism Management, 56, 63–74. https://doi.org/10.1016/j.tourman.2016.03.027

Wibowo, J. M. (2021). Competitiveness of Sustainable Ecotourism at The Bromo Tengger Semeru National Park. Jurnal Penelitian Sosial Dan Ekonomi Kehutanan, 18(1), 45–62. https://doi.org/10.20886/jpsek.2021.18.1.45-62

Wiratno, Hutahayan, B., & Fernandes, A. A. R. (2024). Enhancing Sustainable Build Environments through Ecotourism Villages in Mount Bromo Tengger Semeru National Park, Indonesia. In Rethinking Pathways to a Sustainable Built Environment (pp. 361–378). Routledge. https://doi.org/10.1201/9781003317890-22

Wu, G.-M., Chen, S.-R., & Xu, Y.-H. (2023). Generativity and inheritance: understanding Generation Z’s intention to participate in cultural heritage tourism. Journal of Heritage Tourism, 18(4), 465–482. https://doi.org/10.1080/1743873X.2023.2178927

Wu, J. (Snow), Font, X., & Liu, J. (2021). Tourists’ Pro-environmental Behaviors: Moral Obligation or Disengagement? Journal of Travel Research, 60(4), 735–748. https://doi.org/10.1177/0047287520910787

Wu, J., Wu, H. C., Hsieh, C.-M., & Ramkissoon, H. (2022). Face consciousness, personal norms, and environmentally responsible behavior of Chinese tourists: Evidence from a lake tourism site. Journal of Hospitality and Tourism Management, 50, 148–158. https://doi.org/10.1016/j.jhtm.2022.01.010

Wu, X., & Yuan, Z. (2023). Understanding the socio-cultural resilience of rural areas through the intergenerational relationship in transitional China: Case studies from Guangdong. Journal of Rural Studies, 97, 303–313. https://doi.org/10.1016/j.jrurstud.2022.12.001

Xiaoqin, W., & Zhanhong, C. (2025). Influence of Ecotourism Experience on Tourists’ Environmentally Responsible Behavior: A Case Study of Luya Mountain Scenic Area. Journal of Resources and Ecology, 16(2), 558–568. https://doi.org/10.5814/j.issn.1674-764x.2025.02.023

Yan, Y., Wang, X., Tse, S., & Wang, L. (2024). Connecting Environmental Perception, Awe, Face Consciousness, and Environmentally Responsible Behaviors: A Mediated-Moderated Analysis. Behavioral Sciences, 14(7), 540. https://doi.org/10.3390/bs14070540

Yang, F. X., & Lau, V. M. C. (2015). “LuXurY” hotel loyalty – a comparison of Chinese Gen X and Y tourists to Macau. International Journal of Contemporary Hospitality Management, 27(7), 1685–1706. https://doi.org/10.1108/IJCHM-06-2014-0275

Yang, L., Hu, X., Lee, H. M., & Zhang, Y. (2023). The Impacts of Ecotourists’ Perceived Authenticity and Perceived Values on Their Behaviors: Evidence from Huangshan World Natural and Cultural Heritage Site. Sustainability, 15(2), 1551. https://doi.org/10.3390/su15021551

Ye, W., Li, Z., & Xu, Y. (2022). Transmission of environmentally responsible behavior between tourist destination employees and tourists: The role of moral elevation and environmental knowledge. Frontiers in Psychology, 13. https://doi.org/10.3389/fpsyg.2022.1027736

Zacher, H., SCHMITT, A., & GIELNIK, M. M. (2012). Stepping into my shoes: generativity as a mediator of the relationship between business owners’ age and family succession. Ageing and Society, 32(4), 673–696. https://doi.org/10.1017/S0144686X11000547

Zhao, J., & Weng, L. (2024). The Impact of Tourists’ Perceived Value on Environmentally Responsible Behavior in an Urban Forest Park: The Mediating Effects of Satisfaction and Subjective Well-Being. Forests, 15(10), 1730. https://doi.org/10.3390/f15101730

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2026-06-29

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Identifying The Determinants Of Tourist’s Environmentally Responsible Behavior: Extending The Cab Model With Generativity In Bromo Tengger Semeru National Park. (2026). Jurnal Kepariwisataan Indonesia: Jurnal Penelitian Dan Pengembangan Kepariwisataan Indonesia, 20(1), 203-228. https://doi.org/10.47608/jki.v20i12026.203-228

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