Kumar, K. Abhaya, Prakash Pinto, Iqbal Thonse Hawaldar, and B.R. Pradeep Kumar. “Biogas from Cattle Dung As a Source of Sustainable Energy: A Feasibility Study”. International Journal of Energy Economics and Policy 10, no. 6 (October 10, 2020): 370–375. Accessed December 24, 2024. https://econjournals.com.tr/index.php/ijeep/article/view/10135.