1.
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 [nternet]. 2021 Oct. 30 [cited 2024 Jul. 22];6(2):71-85. vailable from: http://ejournal.unikama.ac.id/index.php/jrpe/article/view/6139