Mezouari, Said El, Zahira Bouaouda, and Hicham Drissi. 2013. “Lean Six Sigma in Africa: Fad or Real Solution of Competitiveness?”. INTERNATIONAL JOURNAL OF MANAGEMENT &Amp; INFORMATION TECHNOLOGY 6 (3):861-66. https://doi.org/10.24297/ijmit.v6i3.724.