DAMANIK, Sapnia W. R.; SIMANULLANG, Helti L.; ZALUKHU, Yusnia A.; HULU, Arnadini; SILALAHI, Taruli Marito. Study Literatur Penerapan Model Problem Based Learning untuk Meningkatkan Hasil Belajar Matematika Siswa SD. Jurnal Pendidikan Tambusai, [S. l.], v. 8, n. 3, p. 44472–44477, 2024. Disponível em: https://jptam.org/index.php/jptam/article/view/21068. Acesso em: 14 jul. 2025.