Abdelrahman, Maha, 		Yassin, Atif, AND 		Abdou, Abdelnasir.
" Utilization of Colocynth (Handal) Seeds Oil as a Lubricating Base Oil" <em>Gezira Journal of Engineering and Applied Sciences</em> [على الإنترنت], المجلد 7 العدد 1 (5 July 2018)