Karrar, Osama Seed Ahmed, Muna Ahmed Agab, and Ahmed Hassan Eltiny. 2015. “Physico- Chemical Assessment of Drinking Water in Northern and Southern Darfur”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 24 (4):438-46. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4823.