References
- http://www.geog.le.ac.uk/argus/people/Kath_Stuff.VisEssay.html
- http://www.uio.no/~iroggen/Basic_concepts.html
- http://www.enabling.org/ia/gestalt/gerhards/index.html
- http://www.gestalt.org
- Dix et al,(1998).Human Computer Interaction second addition.London:Prentice Hall Europe.
- Ellis, W.D.(1938). A Source Book of Gestalt Psychology.New York:Harcourt, Brace & World.
- Wertheimer,M.(1959).Productive Thinking(Enlarged Ed.)New York:Harper & Row.
