Marian Cox. (2014). Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS.
Lua i Stíl Chicago (17ú heag.)Marian Cox. Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2014.
Lua MLA (9ú heag.)Marian Cox. Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.