PORTILLA CHAVES, M. Las oraciones circunstanciales en español. Journal of Philology and Linguistics of the University of Costa Rica, [S. l.], v. 35, n. 2, p. 191–205, 2012. DOI: 10.15517/rfl.v35i2.1172. Disponível em: https://revistas.ucr.ac.cr/index.php/filyling/article/view/1172. Acesso em: 17 jul. 2024.