Ayatullahi SM, Muhammad C, Sokoto AM, Mamuda M, Yusuf MM, Muhammad AU. OPTIMIZATION OF BIODIESEL PRODUCTION FROM USED OIL OF FISH PROCESOR USING SODIUM METHOXIDE AND SULPHONATED EGG-SHELLS AS CATALYST. FJS. 2023;7(4):284-292. doi:10.33003/fjs-2023-0704-1929