& Khalel, A.-R. “HISTOPATHOLOGICAL CHANGES (GILLS AND LIVER) AND CLINICAL SIGNS OF COMMON CARP, CYPRINUS CARPIO L. EXPOSED TO GRAPHENE NANOPARTICLES”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, Vol. 50, no. 3, June 2019, doi:10.36103/ijas.v50i3.706.