“INVENTORY MODEL (M,R,T) CONTINUOUS LEAD TIMES, QUADRATIC BACK ORDER COSTS AND RANDOM SUPPLY (Series 2)”. International Journal of Scientific Research and Management (IJSRM) 2, no. 3 (March 7, 2014). Accessed April 4, 2025. https://ijsrm.net/index.php/ijsrm/article/view/400.