Vaidy, Ashma. “Stakeholders’ Perception About the Effectiveness of Renewable Energy Subsidy in Nepal: A Review of Biogas Subsidy”. Journal of the Institute of Engineering 15, no. 3 (October 16, 2020): 375–384. Accessed April 23, 2024. https://www.nepjol.info/index.php/JIE/article/view/32225.