OSBORNE, Edward W.; MILLER, Larry E. Livestock Skills Performance Levels Reported By Agricultural Production Teachers In Ohio. Journal of Agricultural Education, [S. l.], v. 26, n. 3, p. 28–36, 1985. DOI: 10.5032/jaatea.1985.03028. Disponível em: https://jae-online.org/index.php/jae/article/view/1357. Acesso em: 4 may. 2026.