Linda and  Sau-ling Lai,  An Empirical Study of the Expectation- Perception Gap of I.S. Development.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 3705 - 3709
    [viewed 21 September 2024]. Available from: https://publications.waset.org/pdf/7951.