1. Handbook of water purity and quality;Ahuja,2009
2. Arsenic contamination of groundwater; mechanism, analysis, and remediation;Ahuja,2008
3. Our common future, the World Commission on Environment and Development;Brundtland,1987
4. Assuring water purity by monitoring water contaminants from arsenic to zinc;Brundtland,2006
5. Chemical and engineering news, p. 42, November 17, 2008. (a) Chemical and engineering news, p. 21, May 7, 2012.