Elisha Ugoma, V.; Igbinoba, S.; Imanze, K. Effect of Copper Suplementation on Biogas Yield from Co-Digestion of Cattle Dung and Jatropha Curcas Fruit Coat. FJS 2026, 10 (11), 1-7. https://doi.org/10.33003/fjs-2026-1011-5194.