Turido IA, Prasetiawan H. Meningkatkan Efikasi Diri Melalui Layanan Klasikal Model Problem Based Learning. JPDK [Internet]. 2022Jul.11 [cited 2024Nov.24];4(4):826-35. Available from: http://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/5336