PESARAKLOO, Moslem; KARIM AVA, Areena; BAYANI, Ali Asghar. A Comparative Analysis of Academic Achievement in Single-Grade and Multi-Grade Classes: A Case Study of Primary Schools in Golestan Province. Assessment and Practice in Educational Sciences, [S. l.], p. 1–13, 2025. Disponível em: https://www.journalapes.com/index.php/apes/article/view/122.. Acesso em: 4 oct. 2025.