“63. Peningkatan Hasil belajar Materi Waktu Melalui Model Pembelajaran Problem Based Learning Berbantuan Alat Peraga Siswa Kelas II SDN 1 Samirejo ”, psnppg, vol. 1, no. 1, pp. 570–577, Jul. 2023, Accessed: Aug. 11, 2026. Available: https://conference.upgris.ac.id/index.php/psnppg/article/view/3976