Baker, A. (2008). Ship or sheep?: An intermediate pronunciation course. Nha xuat ban Dong Nai.
Lua i Stíl Chicago (17ú heag.)Baker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. Dong Nai, Vietnam: Nha xuat ban Dong Nai, 2008.
Lua MLA (9ú heag.)Baker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. Nha xuat ban Dong Nai, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.