Wangsa A, Chairuddin C, Umasugi SM. Students’ Mathematical Processes In Solving Open-Ended Problem Using Popular Context (Tiktok: Ci Mehong). J. ris. pendidik. mat [Internet]. 2026 Jun. 1 [cited 2026 Jun. 2];13(1). Available from: https://journal.uny.ac.id/index.php/jrpm/article/view/84510