De Medeiros, E.
(2018).
 IDIOMAS SEM FRONTEIRAS.
<em>CIET:EnPED, </em>.
Recuperado de <a href="https://cietenped.ufscar.br/submissao/index.php/2018/article/view/192" target="_new">https://cietenped.ufscar.br/submissao/index.php/2018/article/view/192</a>