Roaa S. Al-rawi, and Nahla A. Al-Bakri. 2011. “Histological Structure of the Eye in Tree Frog Hyla Arborea Savignyi ”. Journal of Madenat Alelem University College 3 (2), 17-31. https://journal.mauc.edu.iq/index.php/JMAUC/article/view/258.