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Service operations management
Fitzsimmons, James A., (1982)
Management lessons from Mayo Clinic : inside one of the world's most admired service organizations
Berry, Leonard L., (2008)
Class acts : service and inequality in luxury hotels
Sherman, Rachel, (2007)
Are correlations any guide to predictive value
Ferber, Robert, (1956)
Economic aspects of consumer behavior
Ferber, Robert, (1964)
Population change and the demand for service
Ferber, Robert, (1960)