Hudson, R. (2006). Business communication.
Lua i Stíl Chicago (17ú heag.)Hudson, Rondolph. Business Communication. Mumbai, 2006.
Lua MLA (9ú heag.)Hudson, Rondolph. Business Communication. 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.