“Influence Application of Learning Models Problem Based Learning (PBL) Against Results Study Mathematics Student Class VII SMP Negeri 1 Pangkur”, IJSR, vol. 1, no. 3, pp. 151–160, Oct. 2024, Accessed: Feb. 11, 2026. [Online]. Available: https://penerbitjurnalinternasional.com/index.php/ijsr/article/view/731