"Effect of Level of Protein on Digestibility and Nitrogen Balance in Sudan Desert Sheep Fed Molasses-Based Fattening Rations". University of Khartoum Journal of Agricultural Sciences 19, no. 1 (مارس 28, 2023). تاريخ الوصول مايو 25, 2026. https://onlinejournals.uofk.edu/uofkjas/article/view/1923.