Assessment of groundwater quality using the weighted arithmetic method for the water quality index (WAWQI) in the districts of Shu’ub, Azal and Al-Safia - Sana’a. cbej [Internet]. 2023 Nov. 20 [cited 2025 Apr. 20];29(121):235-13. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/10831