Internet Sites
Public Utilities Board (2004). Newater.
Retrieved January 20, 2006, from
http://www.pub.gov.sg/NEWater_files/index.html
Public Utilities Board. (2003). Public Utilities Board.
Retrieved January 20, 2006, from
http://www.pub.gov.sg/NEWater_files/index.html
Free Online
Puzzle Maker. Crossword puzzle.
Retrieved February 19, 2006 from
http://www.puzzle-maker.com/CW/
Discover School
(2004). Discover School's Puzzlemaker.
Retrieved February 19, 2006 from
http://puzzlemaker.school.discovery.com/