ARIFN, M. S.; SYIFAURROSYIDIN, M. Nadzariyyātu Stephen Krashen An Ta’līm Mahārati Al-Kalām. Lisanudhad: Jurnal Bahasa, Pembelajaran, dan Sastra Arab, [S. l.], v. 7, n. 2, p. 165–183, 2020. DOI: 10.21111/lisanudhad.v7i2.6750. Disponível em: https://ejournal.unida.gontor.ac.id/index.php/lisanu/article/view/6750. Acesso em: 6 jan. 2025.