Nugrahani A. UPAYA PENINGKATAN HASIL BELAJAR DENGAN MODEL PROBLEM BASED LEARNING (PBL) PADA PEMBELAJARAN IPS KELAS V SD IT BALIKPAPAN ISLAMIC SCHOOL . semnasppg [Internet]. 2020 Dec. 31 [cited 2026 Apr. 5];1:49-57. Available from: https://jurnal.fkip.unmul.ac.id/index.php/semnasppg/article/view/695