“ THE EFFECTIVENESS OF BLENDED PROBLEM-BASED LEARNING FOR ENHANCING COGNITIVE AND LEARNING OUTCOMES OF STUDENTS‘ CRITICAL THINKING SKILLS ON REDOX MATERIALS”. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam 24, no. 1 (April 20, 2019): 28–34. Accessed July 1, 2026. https://ejournal-science.upi.edu/jpmipa/article/view/823.