نايف قتيبة نبيل, and عبد الرزاق حسين شاكر. “Applied Probability Model of Inventory Multi- Period in Stores of Cement Factory in Samawah”. Journal of Economics and Administrative Sciences 19, no. 74 (December 1, 2013): 343. Accessed March 29, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1451.