Kotze, H, and E D Spangenberg. “Engineering students’ Actions in a Mathematical Modelling Task: Mediating Mathematical Understanding in a Computer Algebra System”. Perspectives in Education 37, no. 2 (November 27, 2019): 16–34. Accessed November 22, 2024. https://journals.ufs.ac.za/index.php/pie/article/view/4026.