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2023. 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. 29, 121 (Nov. 2023), 235–213. DOI:https://doi.org/10.35950/cbej.v29i121.10831.