Rizqiyah DZ, Azizah U. Development of Student Worksheets Problem Solving Oriented to Train Metacognitive Skills Students Grade XI on Acid Base Materials. HJKK [Internet]. 2023 Aug. 12 [cited 2025 Sep. 30];11(4):553-64. Available from: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/8440