Yansah, F., Hermansah, B. ., & Marleni, M. (2023). Keefektifan Model Problem Based Learning Terhadap Hasil Belajar IPA Siswa Kelas IV SD Negeri 68 Palembang. Indonesian Research Journal on Education, 3(2), 1150–1157. https://doi.org/10.31004/irje.v3i2.283