WASET
    Irfan N. Umar and  Yong Su-Lyn,  Instructional Design Practitioners in Malaysia: Skills and Issues.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 1704 - 1708
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/3632.