Rahmatti D, Sunanti T, Kintoko. Development of student worksheets based on an open ended approach to facilitate mathematical critical thinking abilities of junior high school students. THEOREMS [Internet]. 2026 Jan. 30 [cited 2026 Jun. 16];11(1):50-7. Available from: https://www.ejournal.unma.ac.id/index.php/th/article/view/17563