KOTRLIK, Joe W. Attitudes Held Toward FFA Proficiency Awards. Journal of Agricultural Education, [S. l.], v. 28, n. 2, p. 25–32, 1987. DOI: 10.5032/jaatea.1987.02025. Disponível em: https://jae-online.org/index.php/jae/article/view/398. Acesso em: 22 feb. 2025.