FLOWERS, Jim; OSBORNE, Edward W. The Problem Solving and Subject Matter Approaches To Teaching Vocational Agriculture: Effects On Student Achievement And Retention. Journal of Agricultural Education, [S. l.], v. 29, n. 1, p. 20–26, 1988. DOI: 10.5032/jaatea.1988.01020. Disponível em: https://jae-online.org/index.php/jae/article/view/762. Acesso em: 15 oct. 2024.