Tiana MAN, Muchlis M. Development of Worksheet Based on Assessment for Learning (AfL) to Improve Problem Solving Skills on Acid-Base Material. HJKK [Internet]. 2025 May 10 [cited 2025 Aug. 16];13(2):382-94. Available from: https://e-journal3.undikma.ac.id/index.php/hydrogen/article/view/15339