1. Agence France-Presse 2011 China's suicide rate ‘among highest in world http://bit.ly/2aeT4Mq
2. 2007 presidential address-the end(s) of testing;Baker;Educational Researcher,2007
3. Measuring America's decline, in three charts;Cassidy;The New Yorker,2013
4. Tests reveal fall in standard of pupils’ reading;Clare;The Daily Telegraph,1990