Hamodi, Hani, and Semaa Salih. “Phenotypic Evolution and Development of Photoreceptors in the fetus’ Retina Xiphophorus Maculates (Platy)”. Journal of Education and Science (JES) 18, no. 3 (April 1, 2006): 131–149. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23151.