Qetrani S, Achtaich N. Evaluation of procedural and conceptual knowledge of mathematical functions: A case study from Morocco. j. math. educ. [Internet]. 2022 May 27 [cited 2024 Nov. 22];13(2):211-38. Available from: http://jme.ejournal.unsri.ac.id/index.php/jme/article/view/80