Hamdar, Bassam, Hussin Hejase, and Tamar Sayed. “Economic Efficiency Modelling of Water Resources in the Kingdom of Saudi Arabia”. Journal of Social Sciences (COES&RJ-JSS) 3, no. 4 (October 1, 2014): 485–504. Accessed July 3, 2024. https://centreofexcellence.net/index.php/JSS/article/view/jss.2014.3.4.485.504.