Muh. Hisjam and  Nancy Oktyajati and  Wakhid A. Jauhari and  Wahyudi Sutopo,  Model Development for Allocation of Raw Material in Timber Processing Industry in Indonesia.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 2670 - 2675
    [viewed 16 October 2019]. Available from: