WASET
    Teresa Coffman and  Mary Beth Klinger,  Utilizing Virtual Worlds in Education: The Implications for Practice.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2007, vol. 11(11). 612 - 616
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/3382.