Pamungkas, B. ., R. . Wahab, and S. . Suwarjo. “Teaching of the Quran and Hadiths Using Sign Language to Islamic Boarding School Students With Hearing Impairment”. International Journal of Learning, Teaching and Educational Research, vol. 22, no. 5, May 2023, pp. 227-42, http://ijlter.net/index.php/ijlter/article/view/1614.