Pradip Peter Dey and  Bhaskar Raj Sinha and  Mohammad Amin and  Hassan Badkoobehi,  Augmenting Use Case View for Modeling.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1742 - 1745
    [viewed 03 December 2021]. Available from: https://publications.waset.org/pdf/4956.