Jamini, Davood, Jamshidi, Alireza, Abdolmaleki, Mehdi. Identify the challenges of informal settlements and Provide operational-executive solutions to improve it  in Kurdistan province(Case study: Urban Separated Area of Naysar,). Journal of Research and Urban Planning. 2022;12(4):111-130. 10.30495/jupm.2021.27932.3875