R. Widyastuti, “The Viabilities of Freeze-Thaw Pasundan-Bull Sperms After a Short-Term Exposure to Media with Different pHs”, Trop. Anim. Sci. J., vol. 45, no. 3, pp. 270–276, Aug. 2022, doi: 10.5398/tasj.2022.45.3.270.