MODEL PEMBELAJARAN BERBASIS MASALAH (PROBLEM BASED LEARNING) TERHADAP PENINGKATAN HASIL BELAJAR EKONOMI SISWA KELAS X DI SMA NEGERI 1 KAWANGKOAN . jpe-unima [Internet]. 2025 Jun. 28 [cited 2026 Mar. 5];6(1):361-8. Available from: https://ejurnal.unima.ac.id/index.php/jpe-unima/article/view/13286