PUSPITASARI, Regita; NUR FARIDAH, Tsana; RUSTINI, Tin. Pentingnya Model Problem Based Learning dalam Meningkatkan Pemahaman Siswa pada Materi Kenampakan Alam. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 6, p. 3019–3026, 2023. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/6706. Acesso em: 20 jun. 2026.