Widyawati D, Jamhari M, Binti Non Shamdas G. The Effect of Combined Problem Based Learning and Scaffolding Models on Students’ Critical Thinking Ability. J. Riset Pend. MIPA [Internet]. 2023Jun.30 [cited 2024May14];7(1):19-25. Available from: https://new.jurnal.untad.ac.id/index.php/jrpm/article/view/208