فهرس المقالات Ahmad Jalili المقاله 1 - A New Set Covering Controller Placement Problem Model for Large Scale SDNs 10.7508/jist.2018.21.004 Ahmad Jalili Reza Akbari Manijeh Keshtgari Journal of Information Systems and Telecommunication (JIST) , العدد 1 , السنة 6 , زمستان 2018