Ayatullahi, S. M., C. Muhammad, A. M. Sokoto, M. Mamuda, M. M. Yusuf, and A. U. Muhammad. “OPTIMIZATION OF BIODIESEL PRODUCTION FROM USED OIL OF FISH PROCESOR USING SODIUM METHOXIDE AND SULPHONATED EGG-SHELLS AS CATALYST”. FUDMA JOURNAL OF SCIENCES 7, no. 4 (August 30, 2023): 284 - 292. Accessed April 22, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1929.