PATEL, K.D. Review on Techniques in Natural Language Processing. International Journal of Scientific Research in Computer Science and Engineering, [S. l.], v. 7, n. 5, p. 1–4, 2019. Disponível em: https://ijsrcse.isroset.org/index.php/j/article/view/318. Acesso em: 4 apr. 2025.