Ayatullahi, S. M., C. Muhammad, A. M. Sokoto, M. Mamuda, M. M. Yusuf, and A. U. Muhammad. 2023. “OPTIMIZATION OF BIODIESEL PRODUCTION FROM USED OIL OF FISH PROCESOR USING SODIUM METHOXIDE AND SULPHONATED EGG-SHELLS AS CATALYST”. FUDMA JOURNAL OF SCIENCES 7 (4), 284 -92. https://doi.org/10.33003/fjs-2023-0704-1929.