Obidike, Blessing, Nelson Okwara, Andrew Verla, Enyoh Ebere, and Johnpaul Mgbagwu. 2022. “Optimization and Effect of Varying Catalyst Concentration and Trans-Esterification Temperature on the Yield of Biodiesel Production from Palm Kernel Oil and Groundnut Oil”. Analytical Methods in Environmental Chemistry Journal 5 (03), 55-69. https://doi.org/10.24200/amecj.v5.i03.203.