Lua APA (7ú heag.)

PARVATIYAR A. (2001). CUSTOMER RELATIONSHIP MANAGEMENT. TATA MCGRAW-HILL PUBLISHING COMPANY.

Lua i Stíl Chicago (17ú heag.)

PARVATIYAR A. CUSTOMER RELATIONSHIP MANAGEMENT. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY, 2001.

Lua MLA (9ú heag.)

PARVATIYAR A. CUSTOMER RELATIONSHIP MANAGEMENT. TATA MCGRAW-HILL PUBLISHING COMPANY, 2001.

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