Achi, N., and J. Achi. “Vitamin C Inclusion Levels in Chicken and Quail Egg Yolk Tri- Sodium Citrate Extenders on Motility and Viabilty of Friesian X Bunaji Bull Semen over Storage Period”. Nigerian Journal of Animal Science, vol. 20, no. 3, June 2023, pp. 91-98, https://njas.org.ng/index.php/php/article/view/1078.