1. Athinoula, P.L. Thoma, V. and Tampouris, K. (2010) kinetics and mechanism of the reaction between chromium(III) and 2,3-dihydroxybenzoic acid in weak acidic aqueous solutions. Bioinorg. Chem. Appl.,1–8.
2. Beck, M. T. and Nagypal, I. (1990) Chemistry of complex equilibria,Ellis Horwood Limited, New York, 299.
3. Rao, G.N. (1989) Complex equilibria of some biologically important metal ions in aqua-organic media, PhD thesis, Andhra University, Visakhapatnam, India.
4. Rao, R.S. and Rao, G.N. (2005) Computer applications in chemistry. Himalaya Publishing House, Mumbai, 302–309.
5. Vogel, A.I. (1984) Text Book of Quantitative Practical Inorganic Chemistry.ELBS, UK, 439–441.