Dual-Sensing Alert System for High-Security Zones (Motion & Sound-Based). International Research Journal on Advanced Engineering Hub (IRJAEH), [S. l.], v. 4, n. 04, p. 2156–2159, 2026. DOI: 10.47392/IRJAEH.2026.0287. Disponível em: https://irjaeh.com/index.php/journal/article/view/1550.. Acesso em: 27 jun. 2026.