Peace in the political posture during the first half of the eighties «Subjects- Expressions tools- Sigh Language». Damascus University Journal for engineering sciences, [S. l.], v. 33, n. 1, 2021. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/engj/article/view/152. Acesso em: 18 jun. 2026.