Najiba Ouled Omar and  Azza Harbaoui and  Henda Ben Ghezala,  Opinion Mining and Sentiment Analysis on DEFT.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2021, vol. 169(1). 54 - 57
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10011789.