1. Examining the effects of different multiple representational systems in learning primary mathematics;Ainsworth;Journal of the Learning Sciences,2002
2. The timeless way of building;Alexander,1979
3. Alexander, C., Cox, M., Abdelhalim, H., Hazzard, E., Kural, I., & Schukert, M. (1973), The grass roots housing process. http://patternlanguage.com/archives/grassroots/grassroots.htm (Last retrieved 5.10.07).
4. A pattern language: Towns, buildings, construction (Center for environmental structure series);Alexander,1977
5. The Production of Houses;Alexander,1985