1. Toxicological Profile for Nickel, Atlanta: Agency for Toxic Substances and Disease Registry, 2005.
2. Amin, A.S. and Ibrahim, M.S., Ann. Chim., 2001, vol. 91, p. 103.
3. Rauf, M.A., Akhter, Z., and Kanwal, S., J. Trace Microprobe Tech., 2003, vol. 21, p. 577.
4. Lokhande, R.S., Chaudhary, A.B., and Nirupa, S., Asian J. Chem., 2002, vol. 14, p. 153.
5. Rai, H.C., Kumar, A., Singh, K.B., and Kumar, R., Asian J. Chem., 2004, vol. 16, p. 299.