Comparison of esterase isozyme banding in some selected tissues of Asia and African catfish clarias batrachus & c. gariepinus / [Ms Thesis] Fishes 597.49 COM Thesis (MS) -- Department of Zoology, University of Dhaka, 2001-02 Includes bibliographical references Dhaka : University of Dhaka, 2009. 2009. 2009 Text xxv, 114 p. : eng