Audila R, Yusuf R. THE APPLICATION OF SELF-REFLECTION IN THE PROBLEM-BASED LEARNING MODEL TO DEVELOP STUDENTS’ CRITICAL THINKING SKILLS: A SYSTEMATIC LITERATURE REVIEW . Algebra [Internet]. 2025 Dec. 31 [cited 2026 Jun. 13];5(4):1324-32. Available from: https://algebra.yana.or.id/index.php/ejournal/article/view/32