GEIS, G. L. Comparing Instructional Methods: Some Basic Research Problems. Canadian Journal of Higher Education, [S. l.], v. 14, n. 2, p. 91–98, 1984. DOI: 10.47678/cjhe.v14i2.182937. Disponível em: https://cjhe-rces.ca/index.php/cjhe/article/view/182937. Acesso em: 6 may. 2026.