فهرس المقالات Parvaneh Tavakkol المقاله 1 - Analyzing the Drivers of Bullwhip Effect in Pharmaceutical Industry’s Supply Chain 20.1001.1.23222301.2023.9.1.7.6 10.30495/jsm.2022.1966147.1691 Parvaneh Tavakkol Bijan Nahavandi Mahdi Homayounfar Journal of System Management , العدد 1 , السنة 9 , زمستان 2023