Nurul Chafid, and Zulkifli. “SISTEM KEAMANAN BRANKAS MENGGUNAKAN KUNCI OTOMATIS DENGAN SMS”. JURNAL SATYA INFORMATIKA 6, no. 02 (February 16, 2022): 40–55. Accessed April 21, 2026. https://ojs-teknik.usni.ac.id/index.php/jsk/article/view/27.