KEEFEKTIFAN PROBLEM BASED LEARNING BERBANTU MEDIA AUDIO VISUAL TERHADAP HASIL BELAJAR IPS KELAS IV SD. JS (JURNAL SEKOLAH) [Internet]. 2021 Dec. 20 [cited 2026 Jul. 15];6(1):97-102. Available from: https://jurnal.unimed.ac.id/2012/index.php/js/article/view/30024