Louay M. Jeroudaih and  Mohamed S. Hajji,  Extensions to Some AOSE Methodologies.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2010, vol. 40(4). 714 - 719
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/5825.