1. GeotechniCAL, Educational Technology for Ground Engineering. http://www.uwe.ac.uk/geocal/geocal.htm (Aug. 22, 2002).
2. Soil mechanics and foundations. New York: Wiley, 2000.
3. and Computer based instruction for consolidation testing, Proceedings, 36th Annual Symposium on Engineering Geology and Geotechnical Engineering, Las Vegas, Nevada, March 28-30, 2001.
4. Authorware models for instructional design. Upper Saddle River, New Jersey: Prentice Hall, 1996.