Gupta, G. (2011). Marketing of Services: Quality dimensions. New Century Publications.
Lua i Stíl Chicago (17ú heag.)Gupta, Garima. Marketing of Services: Quality Dimensions. Delhi: New Century Publications, 2011.
Lua MLA (9ú heag.)Gupta, Garima. Marketing of Services: Quality Dimensions. New Century Publications, 2011.
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