Orji Ikechukwu, Iroha Ifeanyichukwu, Ejikeugwu Chika, Eze Ukpai Agwu, and Ogbu Ogbonnaya. “Cockroaches (Periplaneta Americana) As Possible Reservoirs of Extended Spectrum Beta-Lactamase (ESBL)-Producing Pathogenic Bacteria ”. International Journal of Research in BioSciences (IJRBS), vol. 6, no. 3, Aug. 2020, pp. 41-49, https://ijrbs.in/index.php/ijrbs/article/view/246.