7T. Mills Kelly, Teaching History in the Digital Age, p.30.
8Mizuko Ito, Hanging Out, Messing Around and Geeking Out, Cambridge: MIT Press, 2009, p.244.
9Samuel Wineburg, Historical Thinking and other Unnatural Acts: charting the Future of Teaching the Past, Philadelphia: Temple University Press, 2001, pp.242248.
10T. Mills Kelly, Teaching history in the digital age, p.17.