Sharma, Ram K., Binod K Bhattarai, Balkrishna Sapkota, Mohan Bahadur Gewali, and Berit Kjeldstad. “Temporal Variation of Black Carbon Aerosol Concentration During Monsoon in Kathmandu Valley”. Journal of the Institute of Engineering 9, no. 1 (June 29, 2014): 37–35. Accessed April 25, 2024. https://www.nepjol.info/index.php/JIE/article/view/10666.