2Spencer Chainey, Jerry Ratcliffe. GIS and Crime Mapping [ M]. England : Wiley Publication,2005.
3Rachel Boba. Crime Analysis and Crime Mapping [ M ]. United States : Sage Publication,2005.
4David Weisburd, Cynthia Lum. The Diffusion of Computerized Crime Mapping in Policing: Linking Research and Practice [ J ]. Po- lice Practice and Research,2005,6(5) :419-434.