Ngongoni N T, Mwale M, Mapiye C, Moyo M T, Hamudikuwanda H and Titterton M 2007: Evaluation of cereal-legume intercropped forages for smallholder dairy production in Zimbabwe. Livestock Research for Rural Development.
Volume 19, Article #129. Retrieved , from http://www.lrrd.org/lrrd19/9/ngon19129.htm