MUSTAPHA, L. M.; SHAGO, M. I.; BURHANUDDEN, R. H.; SULEIMAN, G. PHYSICOCHEMICAL ANALYSIS AND CHARACTERIZATION OF BIODIESEL PRODUCTION FROM RICINUS COMMUNIS SEED OIL. FUDMA JOURNAL OF SCIENCES, v. 5, n. 1, p. 404 - 410, 29 Jun. 2021.