Simanjuntak MC, Purba N, Simarmata RK. Pengaruh Model Problem Based Learning Terhadap Hasil Belajar Siswa Tema 2 Sub Tema 3 Kelas V SDN 122347 Pematangsiantar. JPDK [Internet]. 2022Nov.4 [cited 2024Nov.22];4(6):1158-70. Available from: http://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/8296