Neupane, Pawan Kumar, Sunil Babu Shrestha, Dipesh Rupakheti, Dev Raj Joshi, and Tista Prasai Joshi. “A Short-Term Measurement of PM2.5 Concentration During the COVID-19 Lockdown Period in Kathmandu Valley”. Nepal Journal of Science and Technology 21, no. 1 (December 31, 2022): 73–80. Accessed June 23, 2024. https://www.nepjol.info/index.php/NJST/article/view/49916.