Odrada, P. M. S., L. Purnamasari, and J. F. D. Cruz. “The Effects of Water-Based Coconut Extenders on Semen Preservation : A Review”. Jurnal Sain Peternakan Indonesia, vol. 18, no. 1, Mar. 2023, pp. 20-26, https://ejournal.unib.ac.id/jspi/article/view/26591.