1. Police for the future;Bayley,1994
2. Minorities and the police;Bayley,1969
3. Through values to social interpretation;Becker,1968
4. Political alienation and public satisfaction with police services;Benson;Pacific Sociological Review,1981
5. Bohigian, H. (1977). What is a model? In Modeling the criminal justice system, ed. S. S. Nagel. Beverly Hills: Sage Publications.