KLEIN, Sheri. Action research methods [elektronický zdroj]. 1st ed. New York : Palgrave Macmillan, 2012. 1 online zdroj (xiv, 226 s.). Available on Internet: <http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=471720> ISBN 9781137046635.