Dafaallah, Awadallah, 		Babike, Abd Elgabar, AND 		Zain El Abdeen, Mohammed.
" Variability and host specificity of witchweed [Striga hermonthica (Del.) Benth.] populations on millet [Pennisetum glaucum (L.) R. Br.]" <em>Gezira Journal of Agricultural Science</em> [Online], Volume 12 Number 2 (1 January 2014)