Four Corner Magic Squares 6Í6 with semi Symmetric Center 2Í2. مجلة تاج المعرفة, [S. l.], v. 1, n. الثالث, 2025. Disponível em: https://histt.edu.ly/ojs/index.php/tajournal/article/view/79. Acesso em: 25 أكتوبر. 2025.