MOHAMMED HUSSEIN AL-WASITY, Salim. Comparison of PCA Based and 2DPCA Based Arabic Sign Language Recognition System. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 17, n. 6, p. 22–43, 2013. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1023.. Acesso em: 4 jul. 2025.