Popoola, O. D. ., M. O. . Efuntoye, G. C. . Agu, and B. T. . Thomas. “Pulse-Field Analysis Diversity of Extended Spectrum Beta Lactamases Producing Gram Negative Bacteria Isolated from Periplaneta Americana (Cockroaches)”. Tanzania Journal of Science, vol. 48, no. 3, Sept. 2022, pp. 633-9, doi:10.4314/tjs.v48i3.10.