Sawad, A.A., Balsam A. Hana, and Anwar N. Al-Silawi. “Morphological Study of the Skeleton Development in Chick Embryo (Gallus Domesticus)”. International Journal of Poultry Science 8, no. 7 (June 15, 2009): 710–714. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1237.