HAYS, Virgil W.; BLACK, Charles A. Antibiotics for Animals: The Antibiotic Resistance Issue. Council for Agricultural Science and Technology (CAST), Ames, U.S.A., 1989. DOI: 10.62300/e15m9k56. Disponível em: https://publications.cast-science.org/CAST/article/view/240. Acesso em: 2 jul. 2026.