SUPRAYITNO, Bambang, 		NURSETO, Tejo, AND 		FIKRI, Aula.
" The Profile of Crime and Security Conditions  in Province DI Yogyakarta (DIY) and Willingness to Pay (WTP)  of the People for Reducing Crime Rate" <em>Journal of Advanced Research in Law and Economics</em> [Online], Volume 10 Number 5 (30 September 2019)