Peningkatan Partispasi Aktif dan Hasil Belajar Matematika melalui Model Pembelajaran Problem-Based Learning pada Siswa SMP. Advances In Education Journal , [S. l.], v. 2, n. 4, p. 1–4, 2026. Disponível em: https://journal.al-afif.org/index.php/aej/article/view/770. Acesso em: 25 mar. 2026.