Peningkatan Hasil Belajar IPAS Melalui Model Pembelajaran Problem Based Learning Berbantu Media Nyata Siswa Kelas IVb Sd Negeri Bendungan. Vol. 1, no. 2, Nov. 2023, pp. 2044-51, https://conference.upgris.ac.id/index.php/psnppg/article/view/5347.