SUAD H. ABU-JANAH; SALEM M. ZYAINA. Spectra of the Upper Triangular Double-Band Matrix △. مجلة روافد المعرفة, [S. l.], v. 5, n. 9, p. 172–179, 2025. Disponível em: https://ra.azu.edu.ly/index.php/rawafed-almarefa/article/view/84. Acesso em: 29 سبتمبر. 2025.