فهرس المقالات Hamid Doulabi المقاله 1 - A System Dynamics Approach to Designing Technological Innovation Management Model in Downstream Petrochemical Industries 20.1001.1.23222301.2020.6.1.9.7 10.30495/jsm.2020.673654 Hamid Doulabi Abbas khamseh Taghi Torabi Journal of System Management , العدد 2 , السنة 6 , زمستان 2020