Low-Cost Laser Security System with Intrusion Detection and Alert Mechanism. JOURNAL UGC-CARE IJCRT (2349-3194) | ISSN Approved Journal, [S. l.], v. 14, n. 4, p. 50241–50245, 2024. DOI: 10.61359/2024050027. Disponível em: http://ijcrt.org.in/index.php/ijcrt/article/view/40. Acesso em: 15 jun. 2026.