Degaga, Y. A., & Yami, B. T. (2024). Enhancing the Synthesis of Biolubricant from Used Chicken Fat: Optimization of Operating Parameters Using Magnesium Oxide Nanoparticles as a Catalyst and Response Surface Methodology. Ethiopian Journal of Science and Sustainable Development, 11(1), 42–57. Retrieved from https://www.ajol.info/index.php/ejssd/article/view/265686