Souvannasouk, Vannasinh, Ming-yan Shen, Marlen Trejo, and Prakash Bhuyar. “Biogas Production from Napier Grass and Cattle Slurry Using a Green Energy Technology”. International Journal of Innovative Research and Scientific Studies 4, no. 3 (June 18, 2021): 174–180. Accessed March 28, 2024. http://ijirss.com/index.php/ijirss/article/view/74.