N. I. Jamaluddin, K. H. Haizal, N. Amin, and J. Mohamed, “3D Sign Language: The Development of Mobile Learning Application”, MARI, vol. 3, no. 1, pp. 146–152, Feb. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/3392