فهرس المقالات PRFM Model حرية الوصول المقاله صفحة الملخص نص كامل 1 - PRFM Model Developed for the Separation of Enterprise Customers Based on the Distribution Companies of Various Goods and Services Mohammad Mahdi Hajmohamad Narges Rahimi Behzad Sasanizadeh 10.30495/jsm.2021.678895