Putri, S. M. P., J. Jaswandi, and M. Masrizal. “Effect of Vitamin E Supplementation In Diluent on Fertility Parameters of Different Quality Fresh Bull Sperm”. Jurnal Sain Peternakan Indonesia, vol. 20, no. 1, Mar. 2025, pp. 22-32, doi:10.31186/jspi.id.20.1.22-32.