MARTIN, Jack. The Development and Use of Classroom Observation Instruments. Canadian Journal of Education/Revue canadienne de l’éducation, [S. l.], v. 2, n. 3, p. 43–54, 1977. Disponível em: https://cje.journals.publicknowledgeproject.org/index.php/cje-rce/article/view/7936. Acesso em: 1 sep. 2026.