THE EFFECTIVENESS OF BLENDED PROBLEM-BASED LEARNING FOR ENHANCING COGNITIVE AND LEARNING OUTCOMES OF STUDENTS‘ CRITICAL THINKING SKILLS ON REDOX MATERIALS. JPMIPA [Internet]. 2019 Apr. 20 [cited 2026 Jul. 1];24(1):28-34. Available from: https://ejournal-science.upi.edu/jpmipa/article/view/823