Mario Spremić,  Corporate Governance of Enterprise IT: Research Study on IT Governance Maturity .   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2015, vol. 105(9). 3071 - 3075
    [viewed 29 February 2020]. Available from: https://publications.waset.org/pdf/10002294.