Khairani Dalimunthe A, Khairiyah A, Khairani Harahap A, Nanda Pertiwi K, Fadil Azhari M, Yusnaldi E. Implementasi Model Problem Based Learning Dalam Meningkatkan Kompetensi Pembelajaran IPS Siswa Sekolah Dasar. PEMA [Internet]. 2025Jan.19 [cited 2026Jan.31];5(1):90-4. Available from: http://jurnal.permapendis-sumut.org/index.php/pema/article/view/720