ARANGASAMY, A, et al. “Effect of Prostaglandin F2alpha, Oxytocin and Butylated Hydroxytoluene on Freezability of Crossbred Bull Spermatozoa”. The Indian Journal of Animal Reproduction, vol. 23, no. 1, Feb. 2023, pp. 81-83, https://acspublisher.com/journals/index.php/ijar/article/view/5658.