«Effect of Surgical and Immunological Castration on Haematological Variables, Reproductive Hormones and Ejaculate Characteristics in Mongrel Dogs» (2021) Nigerian Journal of Physiological Sciences, 31(1), сс. 037–042. доступно на: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1850 (просмотрено: 25 апрель 2026).