H. Mzik, N. Ebrahim, and S. Ismail, “Comparative Immunohistochemical Study of the Distribution of CK 8/18 and CK-Cocktail in the Liver Epithelium of Three Vertebrate Species”, Int. J. Sci. Res. Biol. Sci., vol. 7, no. 1, pp. 37–42, Feb. 2020.