{{cite journal | last1=Ali | first1=A. A. | author2=Imad E. E. Abdel Karim Yousif | year=2012 | title=ECONOMIC EFFICIENCY OF WHEAT AND FABA BEAN PRODUCTION FOR SMALL SCALE FARMERS IN NORTHERN STATE - SUDAN | journal=Journal of Animal and Plant Sciences | volume=22 | issue=1 | pages=215-223 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2012-JAPS-124}}