“Low-Cost Laser Security System With Intrusion Detection and Alert Mechanism”. JOURNAL UGC-CARE IJCRT (2349-3194) | ISSN Approved Journal 14, no. 4 (November 14, 2024): 50241–50245. Accessed May 26, 2026. http://ijcrt.org.in/index.php/ijcrt/article/view/40.