Ridwan, M. A., Aradea, and H. Mubarok. “The The Recognition of American Sign Language Using CNN With Hand Keypoint”. International Journal on Information and Communication Technology (IJoICT), Vol. 9, no. 2, Dec. 2023, pp. 86-95, https://socj.telkomuniversity.ac.id/ojs/index.php/ijoict/article/view/845.