(2012). 2009/2010 Industry profile: Business process outsourcing. Labstat Updates.
Čikaški stil citiranja (17. izdanje)"2009/2010 Industry Profile: Business Process Outsourcing." Labstat Updates 2012.
MLA način citiranja (9. izdanje)"2009/2010 Industry Profile: Business Process Outsourcing." Labstat Updates, 2012.
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