Efektivitas Model Problem Based Learning (PBL) Berbantuan Media PAKADES terhadap Kemampuan Pemahaman Konsep Siswa Kelas V Sekolah Dasar - Nugraha, Yogaawalludin; Cahya, Dhina; Arnidha, Yunni; Mubaroq, Abdulloh (Dawuh Guru: Jurnal Pendidikan MI/SD, 2025)