Lethal and sub-lethal toxicity of Sumithion to Channa punctatus / Jannat Mohal [MPhil Thesis] Mohal, Jannat Fish culture 639.37 MOL Thesis (M S) -- Department of Zoology, University of Dhaka, 2004-2005 Includes bibliographical references Dhaka : University of Dhaka, 2012. 2012. 2012 Text x, 113 p. : eng