Abdelrahman, Maha A. A., 		Yassin, Atif A. A., 		Hussein, Ismail Hassan, 		Karama, Abdallah B., AND 		Mirghani, Mohamed E.S..
" Esterification of High Free Fatty Acid Jatropha curcas Oil for Biodiesel Production" <em>Gezira Journal of Engineering and Applied Sciences</em> [Online], Volume 13 Number 1 (9 November 2020)