“The Effect of Caffeine Supplementation in Egg-Yolk Tris Extender on Motility and Velocity of Garut Sheep Sperm Separation” (2011) Animal Production: Indonesian Journal of Animal Production, 12(3). Available at: https://jap.fapet.unsoed.ac.id/index.php/JAP/article/view/1283 (Accessed: 29 October 2026).