Mohammed, M. D.; Abdalsalam, Y. I.; kheir, A. R. M.; Jin-yu, W.; Hussein, M. H. Growth Performance of Indigenous X Exotic Crosses of Chicken and Evaluation of General and Specific Combining Ability under Sudan Condition. Int. J. Poult. Sci. 2005, 4 (7), 468–471. https://doi.org/10.3923/ijps.2005.468.471.