Simanjuntak, Meisy Clarita, Natalina Purba, and Radode Kritianto Simarmata. “Pengaruh Model Problem Based Learning Terhadap Hasil Belajar Siswa Tema 2 Sub Tema 3 Kelas V SDN 122347 Pematangsiantar”. Jurnal Pendidikan dan Konseling (JPDK) 4, no. 6 (November 4, 2022): 1158–1170. Accessed June 30, 2024. http://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/8296.