Suryati , Titi. “PENERAPAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN MOTIVASI DAN PRESTASI BELAJAR EKONOMI SISWA ”. Jurnal Educatio FKIP UNMA 6, no. 1 (June 3, 2020): 147–153. Accessed June 17, 2025. https://www.ejournal.unma.ac.id/index.php/educatio/article/view/288.