Mingsiritham, Kemmanat, and Gan Chanyawudhiwan. “A Study of Using Smart Book to Enhance Communication Ability for Hearing-Impaired Students”. International Journal of Emerging Technologies in Learning (iJET) 13, no. 12 (December 20, 2018): pp. 99–108. Accessed April 25, 2024. https://online-journals.org/index.php/i-jet/article/view/8812.