Hazem J. Smadi,  Design of Distribution Network for Gas Cylinders in Jordan.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2017, vol. 125(5). 1128 - 1131
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10006966.