Ty, Le Van, Nguyen Viet Thang, Hoang Nghia Son, and Nguyen Mong Hung. “Modification and Adaptation of the Oestrus-Ovulation Synchronization Technics in the Hostein-Friz Cows for Shortening Anoestrus Period and Calving Interval”. <i>Academia Journal of Biology</i> 29, no. 3 (November 12, 2014): 78–82. Accessed November 6, 2025. https://cip.vast.vn/vjbio/article/view/5392.