MACLEAN, L. Sandy; WILLIS, Carl. Differences In Academic Achievement Among Three Agricultural Fraternities. Journal of Agricultural Education, [S. l.], v. 12, n. 3, p. 16–23, 1971. DOI: 10.5032/jaatea.1971.03016. Disponível em: https://jae-online.org/index.php/jae/article/view/2245. Acesso em: 23 nov. 2024.