ALEXANDER, L. (1996). Fluency in english: Recorded drill. Kanisius.
Lua i Stíl Chicago (17ú heag.)ALEXANDER, L.G. Fluency in English: Recorded Drill. Yogyakarta: Kanisius, 1996.
Lua MLA (9ú heag.)ALEXANDER, L.G. Fluency in English: Recorded Drill. Kanisius, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.