GRAHAM, James C.; GARTON, Bryan L. Certification Measures: Are They Predictive Of Secondary Agriculture Teacher Proficiency?. Journal of Agricultural Education, [S. l.], v. 44, n. 3, p. 54–65, 2003. DOI: 10.5032/jae.2003.03054. Disponível em: https://jae-online.org/index.php/jae/article/view/1782. Acesso em: 12 jul. 2024.