ZEITHAML (Valarie V.)/ BITNER (Marry Jo), . (2003). Service Marketing. New York: Mcgrawhill International New York.
ZEITHAML (Valarie V.)/ BITNER (Marry Jo), . 2003. Service Marketing. New York: Mcgrawhill International New York.
ZEITHAML (Valarie V.)/ BITNER (Marry Jo), . Service Marketing. New York: Mcgrawhill International New York. 2003.
