WASET
    M. Lesage and  G. RaƮche and  M. Riopel and  F. Fortin and  D. Sebkhi,  An E-Assessment Website to Implement Hierarchical Aggregate Assessment.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 86(2). 560 - 568
    [viewed 10 May 2024]. Available from: https://publications.waset.org/pdf/9997566.