Sehrish Butt, Alya Shujat, Sukaina Arshad, Tasbie Zahra, and Anisa Mehmood. “Review Article Biogas Development and Usage Current Perspectives and Opportunities, Future Outcomes and Prospects: Biogas Uses for Production of Renewable Energy”. Biological Sciences - PJSIR 68, no. 2 (July 10, 2025): 223–228. Accessed December 5, 2025. https://v2.pjsir.org/index.php/biological-sciences/article/view/3137.