PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING GUNA MENINGKATKAN KEPAHAMAN PELAJARAN EKONOMI MATERI ALAT PEMBAYARAN DI SMA NEGERI 1 MAWASANGKA . jpe-unima [Internet]. 2025 Oct. 23 [cited 2026 Mar. 4];4(2s):143 149. Available from: https://ejurnal.unima.ac.id/index.php/jpe-unima/article/view/8126