Tagacay DAA, Panes WD. Development of HAAQ: Hands-Free Attendance Archive using QR Code. Int J Intell Syst Appl Eng [Internet]. 2023 Nov. 4 [cited 2026 Aug. 28];12(3s):167 -. Available from: https://mail.ijisae.org/index.php/IJISAE/article/view/3695