9Chan K.C.,Barbara R.Farrell and Pi cheng Lee.2005.Earnings Management and Return-Eamings Association of Firms Reporting Material Internal Control Weaknesses Under Section 404 of the Sarbanes--Oxley Act.W.orking Paper Series.http://papers.ssrn.Com.
10Sarbanes-Oxley section 404:management assessment of internal and the proposed auditing standards,KPMG,March 2003.