Sirwan, Yad. “Resistance Changes of Escherichia Coli to Cephalosporin in Erbil”. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING 7, no. 2 (March 6, 2022): 186–193. Accessed April 18, 2026. https://eajse.tiu.edu.iq/index.php/eajse/article/view/178.