NUGRAHANI, A. . UPAYA PENINGKATAN HASIL BELAJAR DENGAN MODEL PROBLEM BASED LEARNING (PBL) PADA PEMBELAJARAN IPS KELAS V SD IT BALIKPAPAN ISLAMIC SCHOOL . Prosiding Seminar Nasional PPG Universitas Mulawarman, [S. l.], v. 1, p. 49–57, 2020. DOI: 10.30872/semnasppg.v1.695. Disponível em: https://jurnal.fkip.unmul.ac.id/index.php/semnasppg/article/view/695. Acesso em: 5 dec. 2025.