3[5]COSO. Fraudulent Financial Reporting: 1987-1997 An Analysis of U.S. Public Companies. http: www.coso. org, 1999.
4[6]Dimitris N. Cjorafas. Reliable Financial Reporting and Internal Control. John Wiley & sons, Inc, 2000.
5[7]McMullen, Dorothy A.& Ragahunandan, K. Internal control reports and financial reporting problems. Accounting Horizons,December, 1996, Vol. 10, pp67-75.
6Watts R L. Conservatism in accounting part Ⅰ:explanations and implications[J].Accounting Horrizon,2003.207-221.
7Basu S. The conservatism principle and the asymmetric timeliness of earnings[J].Journal of Accounting and Economics,1997.3-37.
8Goh B W,Li D. Internal controls and conditional conservatism[J].The Accounting Review,2011.975-1005.
9Ball R,Shivakumar L. Earnings quality in U.K.private firms[J].Journal of Accounting and Economics,2005.83-128.
10Khan M,Watts R L. Estimation and empirical properties of a firm-year measure of accounting conservatism[J].Journal of Accounting and Economics,2009.132-150.