Prast E, Stroet K, Koornneef A, Wilderjans T. What do students think about differentiation and within-class achievement grouping?. FLR [Internet]. 2023 Mar. 23 [cited 2025 Feb. 18];11(1):57-93. Available from: https://flr.journals.publicknowledgeproject.org/index.php/journal/article/view/1079