Amshaher, O. and Ataf, S. 2021. Evaluation and Classification of Groundwater Quality for Suitability of Drinking and Irrigation Purposes: A Case Study in the Zamzam Region. Journal of Pure & Applied Sciences . 20, 4 (Dec. 2021), 143–148. DOI:https://doi.org/10.51984/jopas.v20i4.1737.