P. Luangpaiboon and  P. Aungkulanon,  Integrated Approaches to Enhance Aggregate Production Planning with Inventory Uncertainty Based On Improved Harmony Search Algorithm.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 33 - 38
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/7508.