3A. A. Arens and J. K. Loebbecke. 2002. Auditing An Integrated Approach. 9th edition. Prentice Hall, Inc.
4Marshall A. Geiger. 1993. Setting the Standard for the New Auditor' s Report : An Analysis of Attempts to Influence the Auditing Standards Board. JAI press Inc.
5Michael C. Knapp. 1993. Contemporary Auditing: Issue and Case. West Publishing Copmpany.