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Lal Mohan, R S (1991) Research needs for the better management of dolphins and dugongs of Indian coast. CMFRI Bulletin National Symposium on Research and Development in Marine Fisheries Sessions V, VI, VII 1987, 44 (3). pp. 662-666.
Sivadas, M (1991) An account of hand lining fishery for snappers and groupers at Beypore, Calicut with a note on the biology of Pristipomoides typus. Marine Fisheries Information Service, Technical and Extension Series, 113. pp. 20-22.