Melissa MM, Laila EN, Ningrum MP, Kusuma OR. Problem-Based Learning (PBL) Model to improve numeracy skills and self-confidence of middle school students. Factor M [Internet]. 2024 Nov. 17 [cited 2024 Nov. 20];7(2):1-16. Available from: https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/factorm/article/view/env7n1_p1_16