G. C. Mahata and  A. Goswami,  Fuzzy EOQ Models for Deteriorating Items with Stock Dependent Demand and Non-Linear Holding Costs.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2009, vol. 33(9). 687 - 691
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15567.