Abdulhafiz, Alfi Yunita, Lita Lovia. Analysis of Students’ Ability to Understand Mathematical Concepts in The Material Relations and Functions. RMJ [Internet]. 2023 Nov. 11 [cited 2024 Nov. 21];2(2):1-6. Available from: https://math.ppj.unp.ac.id/index.php/RMJ/article/view/21