Obeten, Bright, Emmanuel Oyinebifun Biu, and Nchelem Rosemary George. “Optimization of Production Cost of Palm Oil”. Faculty of Natural and Applied Sciences Journal of Scientific Innovations 4, no. 2 (October 31, 2023): 135–143. Accessed September 16, 2024. https://fnasjournals.com/index.php/FNAS-JSI/article/view/188.