Akhator, E. P., D. I. Igbinomwanhia, and A. I. Obanor. “Commercial Biogas Production from Domestic Solid Waste”. Emerging Trends in Engineering Research and Technology Vol. 2 (May 11, 2020): 81-88. Accessed June 19, 2026. https://stm1.bookpi.org/index.php/etert-v2/article/view/1300.