Sunuwar, Subas Chandra. “Challenges of Shaft Excavation in Nepal Himalaya: Case Study from Hydropower Projects”. Journal of Nepal Geological Society 50, no. 1 (December 21, 2016): 31–37. Accessed April 19, 2024. https://www.nepjol.info/index.php/JNGS/article/view/22851.