A. KHIDIR, J. Detection of Face Direction by Implementing Face Edge Patterns. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 6, n. 2, p. 97–104, 2009. DOI: 10.33899/csmj.2009.163800 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36414. Acesso em: 18 dec. 2025.