“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), hlm. 037–042. Tersedia pada: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1850 (Diakses: 25 April 2026).