@incollection{, A20CFEC056D4BBC217D27A2942AA995C , author={{TarekegnTariku} and {Debre Markos Univesity}}, journal={{Global Journal of Management and Business Research}}, journal={{GJMBR}}2249-45880975-585310.34257/GJMBR, address={Cambridge, United States}, publisher={Global Journals Organisation}1625763 } @book{b0, , author={{ RoddaCossearat }} , title={{Modern Auditing: 3 rd edition. West Palm Beach, Wirey publisher}} USA , year={2009} } @incollection{b1, , title={{Changes and Challenges of Auditing in 21 st Century: The Nigerian Experience}} , author={{ NwosuMEze }} , journal={{International Journal of Finance and Accounting}} 5 1 , year={2016} } @book{b2, , title={{Supplemental Guidance: The Role of Auditing in Public Sector Governance (available on www. globaliia.org/standards-guidance}} , year={2012. July 21, 2015} Institute of Internal Auditors (IIA } @book{b3, , title={{Implementation guidelines for performance auditing, standards and guidelines}} , year={2004} , address={Vienna, Austria} , note={International Organisation of Supreme Audit Institutions (INTOSAI)} } @incollection{b4, , title={{Internal audit effectiveness: an Ethiopian public sector case study}} , author={{ DessalegnMihret } and { Getie } and { AderajewYismaw } and { Wondim }} , journal={{Managerial Auditing Journal}} 5 , year={2007} } @incollection{b5, , title={{Performance Audit Manual, Standards and Implementation Guide I & II}} , author={{ Mofed }} , booktitle={{/?gws _rd =cr&ei=h7gpV2_AYiiU6btnLgI#q=audit+report+i mplementation+stage+in+Ethiopian+public+sect ors+) accessed on}} , year={2013. June 5-2015} } @incollection{b6, , title={{Internal audit effectiveness: An Ethiopian public sector case study}} , author={{ DessalegnMihret } and { Getie } and { AderajewYismaw } and { Wondim }} , journal={{Managerial Auditing Journal}} 5 , year={2007} } @incollection{b7, , title={{Performance Audit Manual, Standards and Implementation Guide I & II}} , author={{ Mofed }} , booktitle={{/?gws _rd =cr&ei=h7gpV2_AYiiU6btnLgI#q=audit+report+i mplementation+stage+in+Ethiopian+public+sect ors+) accessed on}} , year={2013. June 5-2015} } @incollection{b8, , title={{The Office of Auditor General (OAG)}} , booktitle={{South Nations Nationalities and Peoples' Regional State}} , publisher={Hibret Print, Hawassa} , year={2014} 5 }