T. M. Yohannan and K. K. Balasubramanian, “TUNA FISHERY OF THE CALICUT AREA DURING THE SEASONS FROM 1981 TO ’88”, Indian J. Fish., vol. 35, no. 4, pp. 304–308, Sep. 2011, Accessed: Jun. 30, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJF/article/view/10737