Abowei M.F.N, Akinwande A.C, and Akpa J.G. 2019. “Design of Cow-Dung and Grass- Clippings Isothermal Continuous Stirred Co-Digester for Biogas Production”. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE 5 (3):96-109. https://doi.org/10.31695/IJASRE.2019.33112.