WASET
    Marzieh Mokhtaripour,  Systems and Software Safety and Security.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2011, vol. 57(9). 1145 - 1147
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/7583.