Lesikar, R. V. F. (2015). Business Communication (13th ed.). McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Lesikar, Raymond V; Flatley. Business Communication. 13th ed. New Delhi: McGraw Hill, 2015.
Lua MLA (9ú heag.)Lesikar, Raymond V; Flatley. Business Communication. 13th ed. McGraw Hill, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.