Zafar, S., S. B. S. Naqvi, M. A. M, T. Abbass, F. Qazi, and R. Sheikh. “RESISTANCE PATTERN IN CLINICAL ISOLATES OF ESCHERICIA COLI AGAINST FOUR GROUPS OF ANTIBIOTICS”. International Research Journal of Pharmaceutical and Applied Sciences, Vol. 4, no. 1, Feb. 2014, pp. 100-6, https://scienztech.org/index.php/irjpas/article/view/660.