Komala Ulfa, Hendra Saputra, Tazul Arifin, Cut Nila Thasmi, Hafizuddin, Etriwati, and Abdullah Hamzah. “Cervical Opening During Estrus in Aceh Local Cows Based on Camera-Equipped Artificial Insemination Endoscope”. Ovozoa: Journal of Animal Reproduction 12, no. 1 (March 30, 2023): 12–17. Accessed August 13, 2024. https://e-journal.unair.ac.id/OVZ/article/view/42789.