Pengaruh Model Problem Based Learning Terhadap Keterampilan Proses Sains dan Kemampuan Kognitif Materi Ekologi Kelas VII SMP Negeri 2 Percut Sei Tuan. JTIKBorneo [Internet]. 2026 Aug. 12 [cited 2026 Aug. 15];7(1):96-108. Available from: https://journal.uinsi.ac.id/index.php/JTIKBorneo/article/view/13860