Chaffey, D. (2009). Internet marketing: Strategy, implementation and practice (3rd ed.). Pearson Education ; Dorling Kindersley (India) Pvt. Ltd..
Lua i Stíl Chicago (17ú heag.)Chaffey, Dave. Internet Marketing: Strategy, Implementation and Practice. 3rd ed. New York ; New Delhi: Pearson Education ; Dorling Kindersley (India) Pvt. Ltd., 2009.
Lua MLA (8ú heag.)Chaffey, Dave. Internet Marketing: Strategy, Implementation and Practice. 3rd ed. Pearson Education ; Dorling Kindersley (India) Pvt. Ltd., 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.