Sulfab, Hatim, 		Mukhtar, Nuri, 		Adam, Adam, AND 		Hamad, Muawia.
" Effect of organic manures and mineral N fertilizer on production of groundnuts (Arachis hypogaea L.) in Malakal area" <em>Gezira Journal of Agricultural Science</em> [Online], Volume 9 Number 1 (1 January 2011)