Nayak, P K, et al. “Low Doses of Steroid Hormones and Salmon Gonadotropin Induced Oocyte Maturation in Catfish Heteropneustes Fossilis”. Indian Journal of Fisheries, vol. 47, no. 4, Sept. 2011, pp. 321-7, https://epubs.icar.org.in/index.php/IJF/article/view/8507.