Tariq A. M.Tyeb, Galal M. Elmanfe and Jibreel A. Asbeeh 2022. Chemical Analysis of Drink Water Samples for some Water Purification and Treatment Stations in El-Beida City - Libya and Compared with Residential and Mineral Water. Journal of Pure & Applied Sciences . 21, 4 (Oct. 2022), 151–159. DOI:https://doi.org/10.51984/jopas.v21i4.2142.