Non abbiamo ancora una biografia di Ko de Ruyter.
Pubblicato in Inglese

Research on international service marketing
2005

Cases in call center management
2004
Research in e-Service. International Journal of Service Industry Management, Volume 13, Issue 5
2002

Qualitative market research
2003
Oxford Handbook of Individual Differences in Organizational Contexts
2024
Handbook of Research on Customer Loyalty
2022
Dissatisfaction management
1993