Hosseini, Hamid, Sara Fanati Rashidi, and Ali Hamzehee. “Study of the Impact of Environmental Pollution on Efficiency and Sustainable Development Using Data Envelopment Analysis”. MATEMATIKA 36, no. 2 (August 1, 2020): 157–179. Accessed December 22, 2024. https://matematika.utm.my/index.php/matematika/article/view/1224.