JAAFAR, S. B. An Alternative Approach to Measuring Opportunity-to-Learn in High School Classes. Alberta Journal of Educational Research, [S. l.], v. 52, n. 2, 2006. DOI: 10.11575/ajer.v52i2.55128. Disponível em: https://journalhosting.ucalgary.ca/index.php/ajer/article/view/55128. Acesso em: 7 may. 2024.