GILL PRIYA. (2007). BUSINESS PROCESS OUTSOURCING & CALL CENTRE: PROCESS AND STRATEGIES. SRISHTI BOOK DISTRIBUTORS.
Lua i Stíl Chicago (17ú heag.)GILL PRIYA. BUSINESS PROCESS OUTSOURCING & CALL CENTRE: PROCESS AND STRATEGIES. NEW DELHI: SRISHTI BOOK DISTRIBUTORS, 2007.
Lua MLA (9ú heag.)GILL PRIYA. BUSINESS PROCESS OUTSOURCING & CALL CENTRE: PROCESS AND STRATEGIES. SRISHTI BOOK DISTRIBUTORS, 2007.
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