Sischa Yolanda, Marham Sitorus. PENGEMBANGAN BAHAN AJAR KIMIA BERBASIS PROBLEM BASED LEARNING (PBL) PADA POKOK BAHASAN ASAM BASA DI SMA NEGERI 1 PERCUT SEI TUAN. PediaQu [Internet]. 2023 Jun. 6 [cited 2026 Jun. 25];2(3):12109-17. Available from: https://publisherqu.com/index.php/pediaqu/article/view/319