MustaphaL. M., ShagoM. I., BurhanuddenR. H., and SuleimanG. “PHYSICOCHEMICAL ANALYSIS AND CHARACTERIZATION OF BIODIESEL PRODUCTION FROM RICINUS COMMUNIS SEED OIL”. FUDMA JOURNAL OF SCIENCES, Vol. 5, no. 1, June 2021, pp. 404 -10, doi:10.33003/fjs-2021-0501-584.