A.VENKATA RAGHAVENDRA RAO, K.S.SEETHA, and REENA RAJAN. 2015. “PREVALENCE OF EXTENDED SPECTRUM BETA LACTAMASES AMONG GRAM NEGATIVE CLINICAL ISOLATES FROM A TERTIARY CARE HOSPITAL”. International Journal of Pharma and Bio Sciences 6 (3):1295-1304. https://ijpbs.net/index.php/journal/article/view/4579.