“Determination of Lead Levels in Drinking Water in some Areas of Khartoum Cityand Gezira State, Sudan”, GJSFR, vol. 14, no. B5, pp. 13–17, Oct. 2014, Accessed: Aug. 08, 2026. [Online]. Available: https://journalofscience.org/index.php/GJSFR/article/view/1325