VIORA, Dwi; SURYA, Yenni Fitra. Common European Framework of Reference (CEFR): A Systematic Literature Review and Bibliometric. Innovative: Journal Of Social Science Research, [S. l.], v. 5, n. 4, p. 3150–3165, 2025. DOI: 10.31004/innovative.v5i4.20653. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/20653. Acesso em: 1 aug. 2026.