"Effect of Surgical and Immunological Castration on Haematological Variables, Reproductive Hormones and Ejaculate Characteristics in Mongrel Dogs". Nigerian Journal of Physiological Sciences, م 31, عدد 1, مايو، 2021, ص 037-42, https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1850.