Permana , Aditya, Mardiah Masril, and Ruri Hartika Zain. “Sistem Keamanan Kotak Penyimpanan Barang Di Tempat Bermain Anak Dengan Pemanfaatan Qr-Code Dan Sensor Fingerprint”. Journal of Computer Scine and Information Technology 10, no. 1 (May 21, 2026). Accessed May 23, 2026. https://jcsitech-upiyptk.org/ojs/index.php/jcsitech/article/view/150.