JIA, J. An AI Framework to Teach English as a Foreign Language: CSIEC. AI Magazine, [S. l.], v. 30, n. 2, p. 59, 2009. DOI: 10.1609/aimag.v30i2.2232. Disponível em: https://ojs.aaai.org/aimagazine/index.php/aimagazine/article/view/2232. Acesso em: 29 mar. 2024.