SMITH, Sandra D.; LAWRENCE, Layle D.; GARTIN, Stacy A.; ODELL, Kerry S. Major Problems Encountered In Administrating Vocational Agriculture As Perceived By State Vocational Agriculture Supervisors In The United States. Journal of Agricultural Education, [S. l.], v. 31, n. 2, p. 45–48, 1990. DOI: 10.5032/jae.1990.02045. Disponível em: https://jae-online.org/index.php/jae/article/view/1608. Acesso em: 1 may. 2026.