BPP Learning Media. (2009). Business Environment. Viva Books.
Lua i Stíl Chicago (17ú heag.)BPP Learning Media. Business Environment. New Delhi: Viva Books, 2009.
Lua MLA (9ú heag.)BPP Learning Media. Business Environment. Viva Books, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.