Salama, Yasmine, Ramadan Hamed, and Mahmoud Rashwan. “Goal Programming Model Using Data Envelopment Analysis for Human Development Index”. Contemporary Mathematics 5, no. 4 (October 24, 2024): 4600–4613. Accessed November 21, 2024. https://ojs.wiserpub.com/index.php/CM/article/view/5009.