Hasibuan SJ, Sipakkar TRB, Helmira T, Pardosi MFN, Anim A. Implementation of Problem Based Learning (PBL) Model to Increase Students’ Interest in Learning Spatial Building Material in Class VII of SMP Negeri 5 Kisaran. HS [Internet]. 2024Dec.18 [cited 2025Aug.25];4(3):483-7. Available from: https://jurnal.larisma.or.id/index.php/HS/article/view/663