Classification of Facial Expression Using Principal Component Analysis (PCA) Method and Support Vector Machine (SVM). International Journal of Computer and Information Technology(2279-0764), [S. l.], v. 11, n. 1, 2022. DOI: 10.24203/ijcit.v11i1.205. Disponível em: https://www.ijcit.com/index.php/ijcit/article/view/205. Acesso em: 14 jul. 2025.