“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”. Journal of the College of Basic Education, vol. 29, no. 121, Nov. 2023, pp. 235-13, https://doi.org/10.35950/cbej.v29i121.10831.