Samuel, Agus. “Rancang Bangun Prototipe Emergency Locator Card Berbasis GPS Dan Bluetooth Low Energy Untuk Operasi SAR Di Sungai”. Jurnal Teknologi Elektro 17, no. 2 (July 12, 2026): 104–112. Accessed July 18, 2026. https://publikasi.mercubuana.ac.id/index.php/jte/article/view/38007.