PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR ILMU PENGETAHUAN ALAM DAN SOSIAL (IPAS) SISWA KELAS IV SD . JIPTek [Internet]. 2024 Oct. 27 [cited 2026 Jun. 21];2(4):35-46. Available from: https://journal.arthamaramedia.co.id/jiptek/article/view/228