MILNER, Eileen M. - JOYCE, Paul. Lessons in leadership [elektronický zdroj]. London : Routledge, 2005. 1 online zdroj (ix, 181 s.). Available on Internet: <http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=116144> ISBN 0203617797.