Hayek, S., A. ALasaad, and D. Mohammad. “Optimal Investment of the Unconfined Aquifer Adjacent to the Syrian Coast, Which Occupies the Coastal (plain) Area Between the AL-Sin and AL-Ross Rivers (Syria)”. Tishreen University Journal -Engineering Sciences Series, vol. 41, no. 6, Dec. 2019, https://journal.tishreen.edu.sy/index.php/engscnc/article/view/9322.