MAHMOUD, W. A.; STEPHAN, J. J.; RAZZAK, A. A. W. Facial Expression Recognition Using Fast Walidlet Hybrid Transform. Journal Port Science Research, [S. l.], v. 3, n. 1, p. 59–69, 2020. DOI: 10.36371/port.2020.3.4. Disponível em: https://www.jport.co/index.php/jport/article/view/50. Acesso em: 20 oct. 2021.