Diversity and survival of Escherichia coli and Shigella-like bacteria in the aquatic environments of Bangladesh / Nafisa Azmuda. [PhD Thesis] Azmuda, Nafisa Bacteria 579.342 AZD Thesis (Phd )--Department of Microbiology, University of Dhaka, Session : 2009-2012 Includes bibliographical references. Dhaka : University of Dhaka, 2013 2013 2013 Text Various in pagings : eng