Suratinojo R, Mamentu M, Rawung M, Kandori I. MENINGKATKAN MOTIVASI BELAJAR PESERTA DIDIK DALAM MATA PELAJARAN EKONOMI MELALUI MODEL PROBLEM BASED LEARNING (PBL) PADA KELAS XI SMAN 1 BOLANGITANG TIMUR. jpe-unima [Internet]. 2025Oct.23 [cited 2025Nov.4];4(1s):169-75. Available from: https://ejurnal.unima.ac.id/index.php/jpe-unima/article/view/8167