WASET
    H. Naccache and  R. Hleiss,  Multivariate Analysis of Students’ Performance in Math Courses and Specific Engineering Courses.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2016, vol. 111(3). 927 - 932
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10004120.