Reflection of the principles and standards of Six Sigma on the quality of auditor performance Foundations and concepts ((An applied study in the General Tax Authority)). JAFS [Internet]. 2026 Jun. 30 [cited 2026 Jul. 23];21(75):181-98. Available from: https://jpgiafs.uobaghdad.edu.iq/index.php/JAFS/article/view/2566