Abbas, Ansar. “Antibacterial Activities of Various Antibiotics Against Clinical Isolates of Escherichia Coli : Antibiotics Against Gram Negative Bacteria”. Pakistan BioMedical Journal 5, no. 10 (October 31, 2022): 40–43. Accessed May 14, 2024. https://pakistanbmj.com/journal/index.php/pbmj/article/view/841.