Dash, Kalpana, et al. “Immunological Changes Induced by Ovaprim in the Freshwater Catfish, Heteropneustes Fossilis (Bloch)”. Indian Journal of Fisheries, vol. 47, no. 2, Sept. 2011, pp. 123-7, https://epubs.icar.org.in/index.php/IJF/article/view/8550.