9Levy, F. & Murnane, R. J. The New Division of Labor: How Computers are Creating the Next Job Market. Princeton, NJ : Princeton University Press,2004:53-54.
10Quoted inDede, C. (2010) Technological supports for acquiring 21st century skills. In E. Baker, B. McGaw and P. Peterson (eds.), InternationalEncyclopedia of Education, 3rd Edition ( Oxford, UK: Elsevier) [ EB/OL]. Available online at: http:// leamingcenter, nsta. org/products/symposia_seminars/iste/files/Technological_Support_for_21 stCentury_ Encyclo_dede. pdf.