Samad, K. A. S., and A. A. A. . AL Ali. “Study of Histopathological Change in Gills of Coptodon Zillii As a Bioindicator of Pollution in Sarragy River In Abu Alkhasiib Region”. Iraqi Journal of Aquaculture, vol. 11, no. 2, Mar. 2022, pp. 141-52, doi:10.58629/ijaq.v11i2.196.