Gisela Anastacia Rosalind, Shelly Morin, and Veni Saputri. “Systematic Literature Review: Does Problem Based Learning Model Effectively Improve Mathematical Reasoning Ability?”. Didaktika: Jurnal Kependidikan 13, no. 4 Nopember (November 17, 2024): 4715–4732. Accessed October 17, 2026. https://jurnaldidaktika.org/contents/article/view/1056.