W. . Nathaniel, O. . Barth Izuchukwu, N. . James Oliver, and A. . Tanang, “Morphogenesis of the cerebrum of grey breasted helmeted guinea fowl (Numida meleagris galeata) at incubation period”, Sci. J. Biol. Sci., vol. 6, no. 5, pp. 214-221, May 2017.