Waruwu, S. 2023. PENINGKATAN PEMAHAMAN KONSEP TATA SURYA SISWA KELAS VI MELALUI PENDEKATAN MODEL PROBLEM BASED LEARNING. Jurnal Ilmiah Mandalika Education (MADU). 1, 2 (Oct. 2023), 153–160. DOI:https://doi.org/10.36312/madu.v1i2.37.