Kumar, Shivam, and Ananya Putri Rahmawati. “Design, Performance Evaluation, and Environmental Implications of Small-Scale Biogas Systems Using Organic Wastes: A Comprehensive Review and Analytical Synthesis”. International journal of statistics 1, no. 02 (September 1, 2021): 05–07. Accessed March 3, 2026. https://randspublications.org/index.php/ijs/article/view/192.