Mainake, P.N., Laamena, C.M. and Gaspersz, M. 2021. Use of Problem Based Learning (PBL) Models to Improve Student Learning Outcomes. Edumatica : Jurnal Pendidikan Matematika. 11, 03 (Dec. 2021), 11-17. DOI:https://doi.org/10.22437/edumatica.v11i03.12863.