RETALLICK, Michael S.; MARTIN, Robert A. Economic Impact Of Supervised Agricultural Experience In Iowa: A Trend Study. Journal of Agricultural Education, [S. l.], v. 46, n. 1, p. 44–54, 2005. DOI: 10.5032/jae.2005.01044. Disponível em: https://jae-online.org/index.php/jae/article/view/598. Acesso em: 18 may. 2024.