Sardar, V.M., et al. “Effect Of Different Glycerol Levels In Egg Yolk Citrate Extender On Freezability Of Ram Semen ”. Indian Journal of Veterinary Sciences and Biotechnology, vol. 11, no. 2, Dec. 2015, pp. 23-27, https://acspublisher.com/journals/index.php/ijvsbt/article/view/2891.