WASET
    Lina Al-Qatawneh and  Abdallah Abdallah and  Salam Zalloum,  Reducing Stock-out Incidents at a Hospital Using Six Sigma.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2013, vol. 77(5). 1166 - 1173
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/14055.