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. 19-28, doi:10.31186/jspi.id.20.1.19-28.