Wijaya A, Retnawati H, Setyaningrum W, Aoyama K, Sugiman. Diagnosing students’ learning difficulties in the eyes of indonesian mathematics teachers. j. math. educ. [Internet]. 2019 Sep. 3 [cited 2025 Jul. 9];10(3):357-64. Available from: https://jme.ejournal.unsri.ac.id/index.php/jme/article/view/3799