[2]
The nature and determinants of customer expectations of service[J] . Valarie A. Zeithaml,Leonard L. Berry,A. Parasuraman.Journal of the Academy of Marketing Science . 1993 (1)
[2]
The nature and determinants of customer expectations of service[J] . Valarie A. Zeithaml,Leonard L. Berry,A. Parasuraman.Journal of the Academy of Marketing Science . 1993 (1)