ثامر جعفر الله ويردي, and محمد وفي عباس. “Using Regression Analysis As a Method for Estimating Costs and Making Decisions”. Iraqi Journal for Administrative Sciences 5, no. 21 (June 27, 2024): 159–172. Accessed January 18, 2025. https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/1963.