Koirala, Paribesh, Raj K Tripathee, and Nitesh Pandey. “Ground-Based Solar UV Radiation Monitoring Technique Using Photocell”. Journal of the Institute of Engineering 8, no. 3 (February 26, 2012): 177–189. Accessed July 17, 2024. https://nepjol.info/index.php/JIE/article/view/5943.