1. ACTFL (2012). ACTFL Proficiency Guidelines. Erişim: https://www.actfl.org/sites/default/files/pdfs/public/ACTFLProficiencyGuidelines2012_FINAL.pdf
2. Alderson, J. C. (2005). Diagnosing foreign language proficiency. The interface between learning and assessment. London, UK: Continuum.
3. Alderson, J. C. (2007). The CEFR and the need for more research. The Modern Language Journal, 91(4), 659-663.
4. ALTE. (2002). Can-do Project. Erişim: https://www.cambridgeenglish.org/images/28906-alte-can-do-document.pdf
5. ALTE. (2011). Manual for Language Test Development and Examining. For use with the CEFR. Erişim:
https://www.alte.org/resources/Documents/ManualLanguageTest-Alte2011_EN.pdf