PENINGKATAN PRESTASI BELAJAR EKONOMI MELALUI MODEL PROBLEM BASED LEARNING PBL KELAS X SMA NEGERI 1 GEMEH. jpe-unima [Internet]. 2025 Oct. 23 [cited 2026 Mar. 4];4(2s):158 167. Available from: https://ejurnal.unima.ac.id/index.php/jpe-unima/article/view/8128