WASET
    Thiago M. R. Dias and  PatrĂ­cia M. Dias and  Gray F. Moita,  Analyzing Keyword Networks for the Identification of Correlated Research Topics .   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2017, vol. 130(10). 2574 - 2581
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10009032.