Ghasemlounia R, Sedaghat Herfeh N. Study on Groundwater Quality Using Geographic Information System (GIS), Case Study: Ardabil, Iran. Civ Eng J [Internet]. 2017 Oct. 4 [cited 2025 Jul. 1];3(9):779-93. Available from: https://www.civilejournal.org/index.php/cej/article/view/409