APA-referens (7:e uppl.)

Sukhija, P. (2010). E-Commerce: Opportunities & Challenges.

Chicago-referens (17:e uppl.)

Sukhija, Piyush. E-Commerce: Opportunities & Challenges. [s.l], 2010.

MLA-referens (9:e uppl.)

Sukhija, Piyush. E-Commerce: Opportunities & Challenges. 2010.