Melita R. Jemalu M, Rusno R, Yudiono U. Perbandingan model problem based learning (PBL) dan model pembelajaran konvensional terhadap hasil belajar IPS terpadu siswa SMP Negeri 6 Welak. JRPE [Internet]. 2021 Oct. 30 [cited 2024 May 4];6(2):71-85. Available from: https://ejournal.unikama.ac.id/index.php/jrpe/article/view/6139