Zulfayeni H, Nasution ML, Mirna M, Harisman Y. Implementation of Problem Based Learning Model on Students’ Mathematical Problem-Solving Ability. JRHotsPM [Internet]. 2026 Jul. 16 [cited 2026 Aug. 2];6(3):965-77. Available from: https://etdci.org/journal/kognitif/article/view/5364