Waruwu, Salemo. “PENINGKATAN PEMAHAMAN KONSEP TATA SURYA SISWA KELAS VI MELALUI PENDEKATAN MODEL PROBLEM BASED LEARNING”. Jurnal Ilmiah Mandalika Education (MADU) 1, no. 1 (April 28, 2023): 54–63. Accessed July 27, 2025. https://institutpermatamandalika.com/index.php/MADU/article/view/37.