Analyzing the Performance of Citizens and Employees Using Lean Six Sigma Methodology in the Mansour Passport Directorate. JAFS [Internet]. 2025 Sep. 30 [cited 2025 Nov. 19];20(72):226-41. Available from: https://www.jpgiafs.uobaghdad.edu.iq/index.php/JAFS/article/view/2291