Ali, Hasanain Jaafar, and Fatimah Swadi Zghair. “Morphological Study of Syrinx in Swan Goose (Anser Cygnoides)”. Diyala Journal for Veterinary Sciences 1, no. 1 (April 29, 2023): 24–35. Accessed June 7, 2025. https://djvs.uodiyala.edu.iq/index.php/djvs/article/view/82.