1. Cotton, F.A., Wilkinson, G., Murillo, C.A., and Bochman, M., Advanced Inorganic Chemistry, New York: Wiley, 1999, 6th ed.
2. Jones, U.S., Fertilizers and Soil Fertility, New Delhi: Prentice Hall, 1987, 2nd ed.
3. Marczenko, Z. and Lobinski, R., Pure Appl. Chem., 1991, vol. 63, p. 1627.
4. Curzon, M.E.J., Kubota, J., and Bibby, B.G., J. Dent. Res., 1971, vol. 50, p. 74.
5. Agnihotri, R., Akhtar, S., Singh, A., and Agnihotri, N., Res. Rev.: J. Chem., 2016, vol. 5, p. 22.