BAN, H.; OGURI, R.; KIMURA, H. Difficulty-Level Classification for English Writings. Transactions on Engineering and Computing Sciences, [S. l.], v. 3, n. 3, p. 24, 2015. DOI: 10.14738/tmlai.33.1245. Disponível em: https://journals.scholarpublishing.org/index.php/TMLAI/article/view/1245. Acesso em: 25 apr. 2024.