Dr. Reda Abdelfattah Mohammad, Abdullah M. O. Alahmari and Raji Hassan Faqih (2023) “Comparative Analysis Of Six Sigma’s Impact On Employee Performance In Higher Education Institutions: King Khalid University And Suez Canal University”., Kurdish Studies, 11(2), pp. 6242–6256. doi: 10.53555/ks.v11i2.3008.