Brook-Hart, G., & Jakeman, V. (2012). Complete IELTS. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Brook-Hart, Guy, agus Vanessa Jakeman. Complete IELTS. Cambridge: Cambridge University Press, 2012.
Lua MLA (8ú heag.)Brook-Hart, Guy, agus Vanessa Jakeman. Complete IELTS. Cambridge University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.