A. Retbi and  M. Khalidi Idrissi and  S. Bennani,  A Visual Educational Modeling Language to Help Teachers in Learning Scenario Design.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 91 - 94
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/7387.