Thomas Dee
October 17, 2013. Education Week
October 17, 2013. Yahoo News
October 17, 2013. MSN Money
October 17, 2013. SFGate
October 17, 2013. Bloomberg Businessweek
October 17, 2013. Stanford Graduate School of Education
October 17, 2013. Houston Chronicle
October 17, 2013. Daily Journal
October 17, 2013. The New York Times