MOHAMMED EDRIES, Alyaa Al'adwiyah; RAMLI, AZIZUL AZHAR. Sign L - The Development of Sign Language System for Primary School Student. Applied Information Technology And Computer Science, [S. l.], v. 4, n. 1, p. 1419–1433, 2023. Disponível em: https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/7545. Acesso em: 8 apr. 2026.