Kotler, P. (2006). Principles of Marketing (11th edn.). prentic hall of india.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Principles of Marketing. 11th edn. New Delhi: prentic hall of india, 2006.
Lua MLA (9ú heag.)Kotler, Philip. Principles of Marketing. 11th edn. prentic hall of india, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.