“PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS IV SEKOLAH DASAR” (2025) Jurnal Tunas Pendidikan, 8(1), pp. 12–24. Available at: https://ejournal.ummuba.ac.id/index.php/pgsd/article/view/3692 (Accessed: 1 February 2026).