ABDUL JABAR, Syamsinar. The Use of Multimedia Courseware in Teaching Sign Language to Hearing Impaired Students. International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 10, n. 4, 2021. Disponível em: https://ijarped.com/index.php/journal/article/view/1993. Acesso em: 8 jul. 2025.