Natarajan, K., and R. Subashkumar. “Incidence of Multi Drug Resistance and Diversity of TEM-1 Beta Lactamase in Gram Negative Bacteria Isolated from Clinical and Environmental Sample”. International Journal of Applied Sciences and Biotechnology 5, no. 3 (September 27, 2017): 302-308. Accessed May 14, 2021. https://www.nepjol.info/index.php/IJASBT/article/view/17693.