فهرس المقالات جلال حقیقت منفرد المقاله 1 - Model of Technological, Managerial and Marketing Infrastructure for Intelligent Technology Efficiency in Telecommunication Industry - Case Study: Telecommunication Infrastructure Company of Ilam Province1 10.29252/jist.8.30.105 Heshmat morad haseli Jalal Haghighatmonfared Journal of Information Systems and Telecommunication (JIST) , العدد 2 , السنة 8 , بهار 2020