Hammed, O., and O. Amao. “Growth Performance, Testicular and Epididymal Characteristics of Rabbit Bucks Fed Black Seed (Nigella Sativa) Supplemented Diets”. Nigerian Journal of Animal Science, vol. 24, no. 1, Apr. 2023, pp. 49-56, https://njas.org.ng/index.php/php/article/view/566.