1. USDHHS, Toxicological profile for Zinc, US Department of Health & Human Services, Agency for Toxic Substances and Disease Registry, Atlanta, Georgia, 1993.
2. Heavy metals in natural waters;Moore,1984
3. Environmental engineering — a design approach;Sincero,1996
4. World Health Organization, Nickel in drinking-water. Background document for development of WHO guidelines for drinking-water quality, WHO/SDE/WSH/05.08/55, 2005.
5. Carcinogenic nickel silences gene expression by chromatin condensation and DNA methylation: a new model for epigenetic carcinogens;Lee;Mol. Cell. Biol.,1995