RIWU, Esthefania Ide; SAMPE, Markus; DEVI, Rista Apriliya. PENINGKATAN HASIL BELAJAR BAHASA INDONESIA MELALAUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) PADA SISWA KELAS IV SD GMIT NAMOSAIN. SINERGI : Jurnal Riset Ilmiah, [S. l.], v. 2, n. 3, p. 1552–1557, 2025. DOI: 10.62335/sinergi.v2i3.1047. Disponível em: https://manggalajournal.org/index.php/SINERGI/article/view/1047.. Acesso em: 1 may. 2026.