WASET
    Raymond K. Jonkers,  Performance Management of Tangible Assets within the Balanced Scorecard and Interactive Business Decision Tools.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2016, vol. 116(8). 2645 - 2656
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/10005016.