WASET
    Petar Halachev,  Forecasting e-Learning Efficiency by Using Artificial Neural Networks and a Balanced Score Card.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2010, vol. 46(10). 1528 - 1533
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/13351.