Koju, Neel Kamal, Tista Prasai, Sujen Man Shrestha, and Prakash Raut. “Drinking Water Quality of Kathmandu Valley”. Nepal Journal of Science and Technology 15, no. 1 (February 4, 2015): 115–120. Accessed April 29, 2024. https://www.nepjol.info/index.php/NJST/article/view/12027.