Reinelt, Janelle G. and Hewitt, Gerald. (2011) David Edgar's Testing the Echo. Race & Class, Vol.53 (No.1). pp. 83-88. ISSN 0306-3968

Reinelt, Janelle G. and Hewitt, Gerald (2011) The political theatre of David Edgar : negotiation and retrieval. Cambridge studies in modern theatre . Cambridge: Cambridge University Press. ISBN 9780521509688