Kingori, A.M., J.K. Tuitoek, H.K. Muiruri, and A.M. Wachira. “Effect of Dietary Crude Protein Levels on Egg Production, Hatchability and Post-Hatch Offspring Performance of Indigenous Chickens”. International Journal of Poultry Science 9, no. 4 (March 15, 2010): 324–329. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1401.