“Implementation of VPN Using the PPTP Method to Access CCTV Monitoring Data at the Bukit Raya District Office”. Journal of Innovation and Technology Polbeng Series on Informatics (INOVTEK Polbeng - Seri Informatika) 9, no. 2 (October 24, 2024): 553–565. Accessed July 8, 2026. http://210.79.191.38/index.php/ISI/article/view/112.