Changing nature hydrological characteristics : a case study on the Padma river in Bangladesh at Hardinge bridge area / Md. Maniruzzaman. [MS Thesis] Maniruzzaman, Md Bridges 624.2 MAC Thesis(M.S) -- Department of Geography & Environment, University of Dhaka Includes bibliographical references Dhaka : University of Dhaka, 2008. 2008. 2008 Text xvi, 102 p. : eng