Entikhab H. Abed, and Nahla A. AL-Bakri. 2011. “Morphological Description and Histological Structure of the Liver in Passer Domesticus (House Sparrow) ”. Journal of Madenat Alelem University College 3 (2), 49-61. http://116.203.176.164/index.php/JMAUC/article/view/260.