Tresnawati, D., R. Algani, and S. Mubaraq. “THE INTRODUCTION OF HIJAIYAH LETTERS IN SIGN LANGUAGES USING AUGMENTED REALITY TECHNOLOGY”. Jurnal Teknik Informatika (Jutif), Vol. 3, no. 4, Aug. 2022, pp. 907-13, doi:10.20884/1.jutif.2022.3.4.368.