“Histomorphological Study of Uropygial Gland of Pekin Duck (Anas Platyrhnchos Domesticus)”. Baghdad Science Journal 14, no. 1 (March 5, 2017): 0068. Accessed June 18, 2025. https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/2339.