“The Effect of Breed and Different Ratios of Groundnut Hay Dura on Performance and Carcass Composition of Sudan Desert Sheep”. The Sudan Journal Of Animal Production المجلة السودانية للانتاج الحيواني, vol. 6, no. 6, June 1993, p. 5, https://sud-jap.sd/Journal/index.php/sjap/article/view/94.