Hazem M. El-Bakry and  Ahmed Atwan,  Improving Quality of Business Networks for Information Systems.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2009, vol. 27(3). 603 - 615
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/1018.