ثامر جعفر الله ويردي and محمد وفي عباس (2024) “Using regression analysis as a method for estimating costs and making decisions”, Iraqi Journal for Administrative Sciences. كربلاء، جمهورية العراق, 5(21), pp. 159–172. Available at: https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/1963 (Accessed: 19 January 2025).