Observation on Helminth infestation in heteropneustes fissilis (Bloch-1792) in accordance with some of its biological factors and seasons - Dhaka, Author, 1989 - 105 L. 30 cm. Includes bibliography (96-104 L.) Subjects--Topical Terms: Helminthology: Dissertations, Academic Dewey Class. No.: T616.962 O12