WASET
    Phruksaphanrat B.,  Preemptive Possibilistic Linear Programming:Application to Aggregate Production Planning.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2011, vol. 56(8). 1592 - 1599
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/7630.