EL-SAYED, Abdel-Karim, I.M., Magdi, A. SOLTAN, Hasnaa, A. RADWAN, and Mona G. MOHAMED. 2019. “Effect of Oxytetracycline and Florfenicol on the Cytogenetic Picture of Nile Tilapia (Oreochromis Niloticus) Fish”. Journal of Applied Biological Sciences 7 (2):102-6. https://jabsonline.org/index.php/jabs/article/view/323.