KOGAN, Leonid; NAUMKIN, Vitaly. The vowels of Soqotri as a phonemic system. Proceedings of the Seminar for Arabian Studies, [S. l.], v. 44, p. 57–81, 2014. Disponível em: https://www.archaeopresspublishing.com/ojs/index.php/PSAS/article/view/1404. Acesso em: 30 sep. 2025.