Gisela Anastacia Rosalind, Shelly Morin, and Veni Saputri. 2024. “Systematic Literature Review: Does Problem Based Learning Model Effectively Improve Mathematical Reasoning Ability?”. Didaktika: Jurnal Kependidikan 13 (4 Nopember): 4715-32. https://doi.org/10.58230/27454312.1056.