Ananda, Hanifah Muslimah, Wurlina Wurlina, Nove Hidajati, Mas’ud Hariadi, Abdul Samik, and Tjuk Imam Restiadi. “HUBUNGAN ANTARA UMUR DENGAN CALVING INTERVAL, DAYS OPEN, DAN SERVICE PER CONSEPTION SAPIFRIESIAN HOLSTEIN (FH)”. Ovozoa: Journal of Animal Reproduction 8, no. 2 (April 7, 2020): 94–99. Accessed August 13, 2024. https://e-journal.unair.ac.id/OVZ/article/view/18535.