Influence Application of Learning Models Problem Based Learning (PBL) Against Results Study Mathematics Student Class VII SMP Negeri 1 Pangkur. IJSR [Internet]. 18 Oktober 2024 [dikutip 2 September 2026];1(3):151-60. Tersedia pada: https://www.penerbitjurnalinternasional.com/index.php/ijsr/article/view/731