Okpo, S.O. and Edafiadhe, E.D. 2024. Unlocking the Power of Waste Cooking Oils for Sustainable Energy Production and Circular Economy: A Review. ABUAD Journal of Engineering Research and Development. 7, 1 (Mar. 2024), 41-55. DOI:https://doi.org/10.53982/ajerd.2024.0701.05-j.