T H, Nurdiansah N, Susanto C, Nasruddin U, Hidayat M. Android-Based Sign Language Learning and Evaluation Apps. CCIT (Creative Communication and Innovative Technology) Journal [Internet]. 4Aug.2022 [cited 16May2025];15(2):208-19. Available from: https://ejournal.raharja.ac.id/index.php/ccit/article/view/2303