S. Singh and A. K. Srivastava, “Variations in Hepatosomatic Index (HSI) and Gonadosomatic Index (GSI) in Fish <i>Heteropneustes fossilis</i> Exposed to Higher Sub-Lethal Concentration to Arsenic and Copper”, JEOH, vol. 15, no. 3-4, pp. 89–93, May 2017.