Bowler B. Bill & Cunningham S. Sarah. (1997). Headway. Upper-intermediate. Oxford, Oxford University Press, 1997.
Lua i Stíl Chicago (17ú heag.)Bowler B. Bill agus Cunningham S. Sarah. Headway. Upper-intermediate. Oxford, Oxford University Press, 1997, 1997.
Lua MLA (9ú heag.)Bowler B. Bill agus Cunningham S. Sarah. Headway. Upper-intermediate. Oxford, Oxford University Press, 1997, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.