ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. (2016). SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM (6TH.). MC GRAW HILL EDUCATION.
Lua i Stíl Chicago (17ú heag.)ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM. 6TH. NEW DELHI: MC GRAW HILL EDUCATION, 2016.
Lua MLA (9ú heag.)ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM. 6TH. MC GRAW HILL EDUCATION, 2016.
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