* United Nations (2000). [http://www.un.org/millenniumgoals/ The UN Millennium Development Goals.]
* United Nations (2000). [http://www.un.org/millenniumgoals/ The UN Millennium Development Goals.]
* White, J (1982). The aims of education restated. London: Routledge.
* White, J (1982). The aims of education restated. London: Routledge.
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* Alfie Kohn, Punished by Rewards, The Trouble with Gold Stars, Incentive Plans, A's, Praise, and Other Bribes, (Boston: Houghton Mifflin, 1993 / 1999). 1999 edition features a new Afterword by the author