Economic benefit in repeat breeder cows using intrauterine infusion of penicillin and estrus synchronization followed by timed artificial insemination. Journal of Advanced Veterinary and Animal Research, [S. l.], v. 5, n. 4, p. 454–458, 2018. Disponível em: https://banglajol.info/index.php/JAVAR/article/view/39511. Acesso em: 4 jul. 2026.