“THE EFFECTIVENESS OF PROBLEM-BASED LEARNING (PBL) IN CHEMISTRY ON STUDENTS’ CRITICAL THINKING SKILLS: A LITERATURE REVIEW ON ITS IMPLEMENTATION IN INDONESIAN HIGHER EDUCATION INSTITUTIONS”. Indonesian Journal of Education (INJOE) 5, no. 3 (July 16, 2026): 453–465. Accessed October 22, 2026. http://felifa.net/index.php/INJOE/article/view/857.