Md. Anwar Hossain Masud and  Xiaodi Huang,  An E-learning System Architecture based on Cloud Computing.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2012, vol. 62(2). 255 - 259
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/1057.