Dafur, B.S, O.J Anwo, and G.S. Dafur. “Haemoglobin Polymorphism in Nigerian Breeds of Sheep and Goats”. Nigerian Journal of Animal Science 21, no. 1 (January 5, 2019): 30–36. Accessed April 15, 2026. https://www.njas.org.ng/index.php/php/article/view/464.