APA-referens (7:e uppl.)

Gill, P. (2007). Business process outsourcing and call centre. Srishti Book Distributor.

Chicago-referens (17:e uppl.)

Gill, Priya. Business Process Outsourcing and Call Centre. New Delhi: Srishti Book Distributor, 2007.

MLA-referens (9:e uppl.)

Gill, Priya. Business Process Outsourcing and Call Centre. Srishti Book Distributor, 2007.