Maharjan, Rabin, Iswar Man Amatya, and Ram Kumar Sharma. “Comparative Analysis of Hydrogenotrophic Denitrification in up and down Flow Reactors”. Journal of the Institute of Engineering 15, no. 2 (July 31, 2019): 87–91. Accessed May 6, 2024. https://www.nepjol.info/index.php/JIE/article/view/27646.