BEKKUM, Victor A.; HOERNER, Thomas A. Evaluation Of Instructional Materials Packets For Iowa Secondary School Agricultural Education Programs. Journal of Agricultural Education, [S. l.], v. 33, n. 4, p. 31–38, 1992. DOI: 10.5032/jae.1992.04031. Disponível em: https://jae-online.org/index.php/jae/article/view/424. Acesso em: 12 jul. 2024.