فهرس المقالات Promotional effort حرية الوصول المقاله صفحة الملخص نص كامل 1 - Two-echelon Supply Chain Considering Multiple Retailers with Price and Promotional Effort Sensitive Non-linear Demand Elahe Mohagheghian Morteza Rasti-Barzoki Rashed Sahraeian 10.22094/joie.2017.542503.1508 حرية الوصول المقاله صفحة الملخص نص كامل 2 - Two-warehouse system for non-instantaneous deterioration products with promotional effort and inflation over a finite time horizon M. Palanivel S. Priyan P. Mala