“PENINGKATAN HASIL BELAJAR IPAS MATERI PERUBAHAN ENERGI MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA KELAS IV SD NEGERI KUNCIRAN 9”. Sindoro: Cendikia Pendidikan, vol. 18, no. 3, Jan. 2026, pp. 1071-80, https://cibjournal.com/index.php/sindoro/article/view/5980.