WASET
    Alfred L. Guiffrida,  Recent Trends in Supply Chain Delivery Models.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 1823 - 1826
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/9998578.