Lillard, Angeline S, et Megan J Heise. « An Intervention Study: Removing Supplemented Materials from Montessori Classrooms Associated With Better Child Outcomes ». Journal of Montessori Research 2, no. 1 (mai 15, 2016): 16–26. Consulté le juillet 3, 2024. https://journals.ku.edu/jmr/article/view/5678.