http://www.youtube.com/watch?v=y1ObvXZDQNs
http://wsiglobal.wordpress.com/2010/07/21/malaysia-and-water-scarcity-and-pollution/
http://en.wikipedia.org/wiki/Water_pollution
http://www.mbgnet.net/fresh/pollute.htm
http://www.content4reprint.com/science/the-history-of-water-pollution.htm
http://www.wwoa.org/history/regulation.php
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