Ermayanti, N. G. A. M., I. G. L. Oka, I. G. Mahardika, and I. P. Suyadnya. “Free Testosterone Level and Quality of Cauda Epididymis Sperm of Local Rabbit That Given Commercial Feed Supplemented by Cod Fish Liver Oil”. International Research Journal of Engineering, IT & Scientific Research, vol. 2, no. 3, Mar. 2016, pp. 1-8, https://sloap.org/journals/index.php/irjeis/article/view/400.