AMANI, M.; ASADI GANDOMANI, R.; NESAYAN, A. A Study of Academic Factors Underlying First Grade Retention in Primary Schools of North Khorasan. International Electronic Journal of Elementary Education, [S. l.], v. 12, n. 4, p. 325–333, 2020. Disponível em: https://iejee.com/index.php/IEJEE/article/view/998. Acesso em: 30 jan. 2025.