Apollos , Happiness, and Mishark Nnabuchi. “COMPARATIVE EVALUATION OF BIOGAS PRODUCTION POTENTIAL OF PLANTAIN PEELS, COW DUNG, CHICKEN DROPPINGS AND PIGGERY DUNG UNDER ANAEROBIC DIGESTION”. Impact International Journals and Publications, vol. 2, no. 4, Nov. 2026, pp. 654-62, https://impactinternationaljournals.com/index.php/ojs/article/view/962.