Sinebe, Jude E., Wisdom Chukwuemeke Ulakpa, Emmanuel T. Erokare, and D. Bereprebofa. 2026. “Transesterification of Waste Cooking Oil Using Calcium Oxide Derived from Eggshells: Response Surface Methodology”. Journal of Systematic, Evaluation and Diversity Engineering 12 (5). https://doi.org/10.70382/ajsede.v12i5.036.