Abdel Daim, Zeinab, Awad M. Abdel-Rahim, & Abdulwahab Ali Ahmed. " Isolation, Identification and Distribution of Gram Negative Bacterial Isolates Contaminating the Drinking Water of Al Gedarif City." Gezira Journal of Engineering and Applied Sciences [على الإنترنت], 6.2 (2011): عدد الصفحات الشبكة العنكبوتية. 3 Jun. 2026