SITHANAND, T., and S. SAM MANOHAR DAS. 1993. “STUDIES ON THE TOXICITY OF COPPER, ZINC AND COPPER-ZINC MIXTURE ON CIRRHINA MRIGALA (HAMILTION)”. UTTAR PRADESH JOURNAL OF ZOOLOGY 13 (1):52-54. https://www.mbimph.com/index.php/UPJOZ/article/view/1161.