NnajiJ. C., and OnyezekaE. G. “CHARACTERIZATION AND ESTERIFICATION OF VARIOUS WASTE FRYING OILS AS FEEDSTOCKS FOR BIODIESEL PRODUCTION”. FUDMA JOURNAL OF SCIENCES 3, no. 4 (April 11, 2023): 321 - 327. Accessed November 22, 2024. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1654.