Ricardo Avila and Gabriel Lopes and Vania Vidal and Jose Macedo, Using Textual Pre-Processing and Text Mining to Create Semantic Links. journal = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology. June 2019, vol. 151(7). 959 - 966 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10010548.