PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS IV SEKOLAH DASAR. Jurnal Tunas Pendidikan, [S. l.], v. 8, n. 1, p. 12–24, 2025. Disponível em: https://ejournal.ummuba.ac.id/index.php/pgsd/article/view/3692. Acesso em: 1 feb. 2026.