WILLIAMS, Howard - DURAY, Rebecca. Making IT lean [elektronický zdroj]. Boca Raton, FL : CRC Press, 2013. 1 online zdroj (x, 222 s.). Available on Internet: <http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=511733> ISBN 9781439876039.