INVENTORY MODEL FOR IMPERFECT QUALITY ITEMS UNDERDIFFERENT DETERIORATION RATES AND SHORTAGES CONSIDERING PRICE AND TIME DEPENDENT DEMAND WITHINLFATION AND PERMISSIBLE DELAY IN PAYMENTS. IJARR. 2017;2(9):82-100. Accessed November 5, 2026. https://ijarr.org/index.php/ijarr/article/view/200