زينب حسن عبود, عبد الحسين حسن, and علي عبد الحسين. “Estimation & Analysis the Sensitivity of Procedures Partial and Total Productivity”. Iraqi Journal for Administrative Sciences, vol. 5, no. 21, June 2024, pp. 131-47, https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/1961.