Pantha, Parkash, Tanka Prasad Bhusal, Budha Ram Shah, and Rajendra Prasad Koirala. “Study of Natural Background Radiation in Kathmandu Valley”. BIBECHANA 16 (November 22, 2018): 187–195. Accessed May 6, 2024. https://www.nepjol.info/index.php/BIBECHANA/article/view/21605.