PENGEMBANGAN PETUNJUK PRAKTIKUM LARUTAN ASAM BASA BERBASIS PBL (PROBLEM BASED LEARNING) BERORIENTASI GREEN CHEMISTRY. zarah [Internet]. 2023 May 25 [cited 2025 Oct. 7];11(1):41-6. Available from: https://ojs.umrah.ac.id/index.php/zarah/article/view/4961