S. N. Thomas and C. Hridayanathan, “Comparative technical efficiency of differentgillnet fishing sectors of Kerala”, Indian J. Fish., vol. 53, no. 4, pp. 417–423, Jul. 2011, Accessed: Jun. 19, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJF/article/view/7496