Hilya Miftahul Uswa, Herry Sonjaya, S. Gustina, and Hasbi Hasbi. “The Concentration of Hydrogen Peroxide, Percentage of Motility, Viability, Plasma Membrane Integrity, and Abnormality of Frozen Semen of Horned and Polled Bali Bulls”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 64, no. 1, Oct. 2022, pp. 104-15, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/14584.