“Histological Changes of the Gills of Carp Fish (Cyprinius Carpio) in Winter and Summer: Suhaib A. H. A. Al–Taai and Amer M. Hussin”. 2017. The Iraqi Journal of Veterinary Medicine 40 (2): 20-25. https://doi.org/10.30539/iraqijvm.v40i2.106.