University of Cambridge & University of Cambridge. (2021). IELTS 16 Academic: With answers : authentic practice tests. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)University of Cambridge agus University of Cambridge. IELTS 16 Academic: With Answers : Authentic Practice Tests. Cambridge: Cambridge University Press, 2021.
Lua MLA (9ú heag.)University of Cambridge agus University of Cambridge. IELTS 16 Academic: With Answers : Authentic Practice Tests. Cambridge University Press, 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.