Ahmad RN, Kobandaha PE. Analysis of Problem-Solving Ability in Solving Open-Ended Problems of Junior High School Students on Social Arithmetics Material. EduMatSains [Internet]. 2026 Apr. 30 [cited 2026 Jun. 26];10(4):138-46. Available from: https://ejournal.uki.ac.id/index.php/edumatsains/article/view/7672