Peningkatan Hasil Belajar Matematika Materi Mengukur Sudut Melalui Penerapan Model Problem Based Learning Berbantuan Media Kongkret Pada Peserta Didik Kelas V SDN Pedurungan Kidul 01. psnppg [Internet]. 2025 Jan. 9 [cited 2026 Aug. 12];2(1):179-90. Available from: https://conference.upgris.ac.id/index.php/psnppg/article/view/6315