Rao, P.V. and Kathirvel, M. 2011. SEASONAL OCCURRENCE OF PENAEUS SEMISULCATUS DE HAAN, PANULIRUS POLYPHAGUS (HERBST) AND PORTUNUS (P.) PELAGICUS (LINN.) IN THE COCHIN BACKWATER. Indian Journal of Fisheries. 18, 1 & 2 (Dec. 2011), 129–134.