Voice Foundation. (2004). Journal of Voice. Mosby.
Lua i Stíl Chicago (17ú heag.)Voice Foundation. Journal of Voice. Saint Louis, Mo: Mosby, 2004.
Lua MLA (8ú heag.)Voice Foundation. Journal of Voice. Mosby, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.