HARAPIT, S. PERANAN PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH DAN MOTIVASI BELAJAR PESERTA DIDIK. Jurnal Pendidikan Tambusai, [S. l.], v. 2, n. 2, p. 912–917, 2018. DOI: 10.31004/jptam.v2i4.41. Disponível em: https://jptam.org/index.php/jptam/article/view/41. Acesso em: 3 jul. 2024.