Ahmad, C.K. 2017. The Role of Using Six Sigma Approach for Activating and Improving the Internal Audit , and its reflections on the Quality of Accounting Information: Exploratory Research in a Sample of Commercial Banks in Sulaymaniyah. Journal of University of Human Development. 3, 3 (Aug. 2017), 347–370. DOI:https://doi.org/10.21928/juhd.v3n3y2017.pp347-370.