SANCHO GUINDA, Carmen. Contractual role of modality as convergence strategy in technical research articles. Revista Electrónica de Lingüística Aplicada, [S. l.], v. 2, n. 1, p. 219–233, 2003. Disponível em: https://matrix.aesla.org.es/RAEL/article/view/96. Acesso em: 9 may. 2025.