MARTIN, Robert A.; ABEYSEKERA, Raja. The Perceived Supervisory Role Expectations Of Area Extension Directors In Iowa. Journal of Agricultural Education, [S. l.], v. 28, n. 3, p. 49–56, 1987. DOI: 10.5032/jaatea.1987.03049. Disponível em: https://jae-online.org/index.php/jae/article/view/592. Acesso em: 13 jul. 2024.