Alanssari, Saeeda, Jie. Liu, Mike Kjelland, M. Ridha- Albananchi, and Duane Kraemer. “In Vitro Fertilization of Immature Oocytes by Testicular Sperm: Animal Model for Azoospermic Infertile Patients”. Journal of the Faculty of Medicine Baghdad 49, no. 4 (January 2, 2008): 394-399. Accessed November 30, 2019. http://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/1329.