CHANTALAKHANA, C.; H. KOSHI, J.; CHERMPORN, P. Estrous Synchronization in Beef Cattle for Artificial Insemination with Frozen Semen1. Agriculture and Natural Resources, Bangkok, Thailand, v. 5, n. 3, p. 154–158, 1965. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/240620. Acesso em: 18 sep. 2026.