Mustapha, A.O., Yemisi Tokunbo Afolabi, Simeon Gbenga Oladele and Salihu Folorunsho Adisa 2022. Catalytic Performance for Transesterification Reaction Using Waste Cooking Oils Over Nano-Calcium Oxide (n-CaO) Catalyst from Different Waste Bones. Iraqi Journal of Natural Sciences and Nanotechnology. 3, (Jun. 2022), 20-34. DOI:https://doi.org/10.47758/ijn.vi3.54.