Siva Prasad Ponnuru, “ADVANCED NETWORK SECURITY: EVALUATING FIREWALL AND VPN STRATEGIES FOR ROBUST PROTECTION IN MODERN TELECOMMUNICATIONS”, IJRCAIT, vol. 7, no. 2, pp. 1359–1376, Nov. 2024, Accessed: Oct. 14, 2025. [Online]. Available: https://ijrcait.com/index.php/home/article/view/IJRCAIT_07_02_105