E.Mokhtar, Salma, 		Abdella, Babiker, 		Mahjub, ImadEldeen, AND 		Abd Elmawla4, Maha.
" Synthesis of Ethylene Glycol Diesters as Bio-Lubricant from Jatropha Methyl Esters" <em>Gezira Journal of Engineering and Applied Sciences</em> [Online], Volume 14 Number 2 (31 December 2019)