Oktavia, Muthia, and Ramadhan Sumarmin. 2021. “Sperm Quality of Bull Limousin (Bos Taurus) in the Area of Ibuh, Payakumbuh”. Jurnal Serambi Biologi 6 (2), 20-24. https://doi.org/10.24036/srmb.v6i2.7.