1.
Juika J, Dewi SV, Heryani Y. Effectiveness of Problem-Based Learning with the Teaching at the Right Level Approach on Students’ Mathematical Concepts Understanding Ability. JRHotsPM [Internet]. 2026 Feb. 16 [cited 2026 Feb. 22];6(1):216-2. Available from: https://etdci.org/journal/kognitif/article/view/3379