Bouchrika, Ali, and Wajdi Bardi. “The Management of Drinking Water and Long-Term Perspective: Tunisia Case”. International Journal of Economics and Financial Issues 6, no. 4 (October 21, 2016): 1591–1598. Accessed December 6, 2022. https://www.econjournals.com/index.php/ijefi/article/view/2781.