Bhatta, Kishan Datta, and Roger C.K Chan. “Ecotourism, Environmental Impacts and Sustainability in the Himalayan Settlements: Study of Sagarmatha (Mt. Everest) National Park, Nepal”. Himalayan Journal of Applied Science and Engineering 4, no. 1 (June 27, 2023): 16–32. Accessed November 21, 2024. https://nepjol.info/index.php/hijase/article/view/56129.