Efektivitas Penerapan Model Pembelajaran Problem Based Learning (PBL) Berbantuan Media Papan Bilangan Terhadap Pemahaman Konsep Nilai Tempat Siswa Kelas IV Sekolah Dasar. Sindoro: Cendikia Pendidikan, [S. l.], v. 18, n. 11, 2026. Disponível em: https://journal.cib.institute/index.php/sindoro/article/view/4954. Acesso em: 17 oct. 2026.