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