8Simunic D.A..The Pricing of Audit Services:Theory and Evidence.Journal of Accounting Research.1980.
9Francis J R.The Effect of Audit Firm Size on Audit Prices:A Study of the Australian Market.Journal of Accounting and Economics,1984.
10Francis et al.Dose Audit Market Concentration Harm the Quality of Audited Earnings?Evidence from Audit Markets in 42 Countries.Contemporary Accounting Research,2013.