Sirag, N., 		M Tajeldin, I., 		Abubakr, M., 		Mudathir, A., 		Bashir, I., & 		Mohammed, S.
2018 Jun 19.  Determination of Antioxidant Activity of some Varieties of Onion (Allium cepa L.)  grown in Sudan. Gezira Journal of Health Sciences. [Online] 11:2