CLARK, Robert W.; SCANLON, Dennis C. THE EFFECTS OF TEACHER ATTITUDES AND RELATED FACTORS ON FFA PROFICIENCY AWARDS WON ABOVE THE FEDERATION LEVEL. Journal of Agricultural Education, [S. l.], v. 37, n. 2, p. 8–16, 1996. DOI: 10.5032/jae.1996.02008. Disponível em: https://jae-online.org/index.php/jae/article/view/1372. Acesso em: 23 jun. 2026.