SCHUMACHER, Leon G.; JOHNSON, Donald M. Modified Delphi Assessment of Agricultural Mechanics Laboratory Manahement Competencies. Journal of Agricultural Systems, Technology, and Management, [S. l.], v. 4, n. 2, p. 29–39, 1989. Disponível em: https://jastm.org/index.php/jastm/article/view/11919. Acesso em: 24 feb. 2025.