Luka, Y. et al. 2025. Excel Solver Aided Biogas Kinetics Computation for Varied Ratio Co-digestion of Cassava Peels with Chicken Manure. Vokasi Unesa Bulletin of Engineering, Technology and Applied Science. 2, 3 (Aug. 2025), 489–502. DOI:https://doi.org/10.26740/vubeta.v2i3.38630.