Clifford De Raffaele and  Luana Bugeja and  Serengul Smith,  The Use of Social Networking Sites in eLearning.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2015, vol. 100(4). 1262 - 1267
    [viewed 19 April 2021]. Available from: https://publications.waset.org/pdf/10001115.