PROEHL, Rebecca A.; DOUGLAS, Shelese; ELIAS, Dean; JOHNSON, Anthony H.; WESTSMITH, Wendy. A Collaborative Approach: Assessing the Impact of Multi-Grade Classrooms. Catholic Education: A Journal of Inquiry and Practice, [S. l.], v. 16, n. 2, p. 417–440, 2013. Disponível em: https://ejournals.bc.edu/index.php/cej/article/view/1943. Acesso em: 19 apr. 2024.