1.
Ramadhania D, Prayitno S, Subarinah S, Arjudin A. Analysis of mathematics problem-solving ability on plane figure subject based on van hieles theory at Junior High School. J. Pijar.MIPA [Internet]. 2022 Jul. 31 [cited 2024 May 20];17(4):493-8. Available from: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/3413