Nguyen, Phong-Luu, Dinh-Hai Vu, and Trong-Bang Tran. “A Cost-Effective QR Code-Based Equipment Management System for Small-Scale Clinical Facilities”. Scientific Journal of Engineering Research 2, no. 3 (June 19, 2026): 421–427. Accessed June 23, 2026. https://journal.futuristech.co.id/index.php/sjer/article/view/430.