فهرس المقالات Supply chain management . Trade credit . Inventory . Time and credit period sensitive demand . Default risk حرية الوصول المقاله صفحة الملخص نص كامل 1 - Optimal replenishment and credit policy in supply chain inventory model under two levels of trade credit with time- and credit-sensitive demand involving default risk Puspita Mahata Gour Chandra Mahata Sujit Kumar De