Keller, W. S., I. P. Kashoma, and M. M. Kichuki. “Comparative Efficacy of Soybean Milk and OptiXcell Extenders for Cryopreservation of Goat Semen”. Tanzania Veterinary Journal, vol. 40, no. 1, Oct. 2025, https://tvj.sua.ac.tz/vet2/index.php/TVJ/article/view/705.