1. Kettyle, W.M. and Arky, R.A., Endocrine Pathophysiology, Philadelphia: Lippencott-Raven, 1998.
2. Schmidt, U., Pfleiderer, G., and Bartkowiak, F., Anal. Biochem., 1984, vol. 138, p. 217.
3. Vasundhara, B.R., Shetty, A.N., and Gabag, R.V., Bull. Pure Appl. Sci., 1995, vol. 14, p. 1.
4. Karthikeyan, J., Parameshwara, P., Shetty, A.N., and Shetty, P., J. Braz. Chem. Soc., 2006, vol. 17, no. 2, p. 316.
5. Shetty, P. and Shetty, A.N., J. Serb. Chem. Soc., 2005, vol. 70, no. 11, p. 1357.