“Morphological and Histological Structure of the Liver in Budgerigar (Melopsittacus Undulatus )”. Ibn AL-Haitham Journal For Pure and Applied Sciences 29, no. 1 (March 9, 2017). Accessed May 5, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/75.