Prast, Emilie, Kim Stroet, Arnout Koornneef, and Tom Wilderjans. “What Do Students Think about Differentiation and Within-Class Achievement Grouping?”. Frontline Learning Research 11, no. 1 (March 23, 2023): 57–93. Accessed November 29, 2024. https://flr.journals.publicknowledgeproject.org/index.php/journal/article/view/1079.