Common European Framework of Reference for Languages (CEFR) dan Implikasinya bagi Buku Ajar BIPA. Jurnal Idiomatik: Jurnal Pendidikan Bahasa dan Sastra Indonesia, [S. l.], v. 3, n. 2, p. 80–87, 2020. DOI: 10.46918/idiomatik.v3i2.777. Disponível em: https://ejournals.umma.ac.id/index.php/idiomatik/article/view/777. Acesso em: 26 jul. 2025.