5Robert Moeller. Brink's Modem Internal Auditing [ M ]. John wiley &Sons, Ltd, 1999.
6] Jane F Mutchler. Independence and Objectivity : A framework For Research Opportunities In Internal Auditing[ D]. The Institute of Internal Auditors Research Foundation,2003.
7Martin Bariff. Intemal Audit Independence and Corporate Governance [ D ]. The Institute of Internal Auditors Research Foundation,2003.