Najeb, M. Q., H.A.M. Dauod, and M.A. Gali. 2017. “Amorphological and Histological Study of the Olfactory Organ in Parasilurus Triostegus (Heckel)”. Ibn AL-Haitham Journal For Pure and Applied Sciences 22 (1). https://jih.uobaghdad.edu.iq/index.php/j/article/view/1286.