Comparative community structure analysis of endoparasitic helminths of Anabas testudineus (bloch, 1792) from a fresh water body and a polluted river of Bangladesh / [MS Thesis] Fishes Diseases 639.37483 COM Thesis (M.Sc.) -- Department of Zoology, University of Dhaka, 2010-2011 Includes bibliographical references Dhaka : University of Dhaka, 2013. 2013. 2013 Text vii, 60 p., [6] leaves of plates : eng