InkpenK. (2001). Designing handheld technologies for kids. Personal Technologies Journal, 3, 81–89.
2.
Proceedings of CHI, Conference on Human Factors in Computing Systems. Seattle, WA.
3.
NormanD. A. (1993). Things that make us smart: Defending human attributes in the age of the machine. New York: Addison-Wesley Publishing Company.
4.
NormanD. A. (1999). The Invisible Computer: Why good products can fail, the personal computer is so complex, and information appliances are the solution. Cambridge, MA: The MIT Press.
5.
SharplesM. (2000b). The design of personal mobile technologies for lifelong learning. Computers and Education, 34, 177–193.
6.
WeiserM. (1991). The computer for the 21st century. Scientific American, 265(3), 94–95, 98–102.