WASET
    Ghanima Al-Sharrah and  Haitham M. Lababidi and  Yusuf I. Ali,  Planning a Supply Chain with Risk and Environmental Objectives.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2016, vol. 116(8). 2693 - 2697
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10005091.