WASET
    Huda Al Shuaily and  Karen Renaud,  A Framework for SQL Learning: Linking Learning Taxonomy, Cognitive Model and Cross Cutting Factors.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2016, vol. 117(9). 3105 - 3111
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/10005310.