Taher T. APPLICATION OF PROBLEM BASED LEARNING MODEL TO IMPROVE ACTIVITIES AND STUDENT LEARNING OUTCOMES OF CLASS XI IPA2 OF SMA NEGERI 5 TIDORE ON COLLOIDAL MATERIAL. ijeit [Internet]. 12Dec.2019 [cited 9May2026];2(2):24-8. Available from: https://jurnal.peneliti.net/index.php/IJEIT/article/view/142