عبد الغني يحيى ر. Terms in Hidden Tone. College of Basic Education Research Journal, [S. l.], v. 7, n. 2, p. 171–191, 2008. Disponível em: https://jeh.uomosul.edu.iq/index.php/berj/article/view/37894. Acesso em: 27 oct. 2025.