Singh, V., Srivastava, S. S. and Singh, P. B. (2011) “Effect of Cypermethrin on Conjugation of Sex Steroid Hormones during Reproductively Active and Reproductively Inactive Phases of the Annual Reproductive Cycle in <I>Heteropneustes fossilis</I> (Bloch)”, Journal of Ecophysiology and Occupational Health, 11(1-2), pp. 91–99. doi: 10.18311/jeoh/2011/2253.