PENINGKATAN HASIL BELAJAR IPAS MATERI PERUBAHAN ENERGI MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA KELAS IV SD NEGERI KUNCIRAN 9. Sindoro: Cendikia Pendidikan, [S. l.], v. 18, n. 3, p. 1071–1080, 2026. Disponível em: https://cibjournal.com/index.php/sindoro/article/view/5980. Acesso em: 2 oct. 2026.