Muhammad, Tahseen Fadel, and Hatem Ail Abdullah. “The Application of the Holonic Manufacturing System by Adopting the Lean Six Sigma Methodology - the Mediating Role of the Lean Supply Chain Thread: A Study of the Opinions of a Sample of Private Companies for the Pharmaceutical Industry in the City of Sa”. Tikrit Journal of Administrative and Economic Sciences, vol. 19, no. 64, 1, Dec. 2023, pp. 283-02, doi:10.25130/tjaes.19.64.1.16.