Peningkatan Aktivitas dan Hasil Belajar Siswa SMP melalui Pembelajaran Problem Posing. Jurnal Pendidikan, [S. l.], v. 19, n. 2, p. 116–128, 2018. DOI: 10.52850/jpn.v19i2.914. Disponível em: https://e-journal.upr.ac.id/index.php/JPN/article/view/914. Acesso em: 22 jul. 2024.