Abugideiri, Yousif, B, A. D. I. ,. “Residue Levels of a Sub Lethal Dose of Organochlorine Endosulfan in Whole Fish of Tilapia Species Oreochromis Niloticus.”. Journal of The Faculty of Science and Technology, no. 5, Oct. 2018, pp. 29 -33, doi:10.52981/jfst.vi5.363.