Sapkota, Tika, Jagannath Aryal, Samir Thapa, and Amrit B Karki. “Biogas Production from Anaerobic Digestion of Different Biodegradable Materials”. Nepal Journal of Science and Technology 13, no. 2 (March 8, 2013): 123–128. Accessed November 22, 2024. https://nepjol.info/index.php/NJST/article/view/7724.