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http://www.aflcio.org/content/download/11731/145661/RT%40WK.pdf
Scott McLeod, JD, PhD, "Does Teacher Tenure Have a Future?," www.dangerouslyirrelevant.org, Apr. 19, 2010
Nanette Asimov, "Teacher Job Security Fuels Prop. 74 Battle," San Francisco Chronicle, Sep. 30, 2005