Hayati Ikhwani, Rahayu Trisetyowati Untari, and Randika Farike Bania, Trans., “Development Of A QR Code-Based Online Attendance Mobile Application At SMK Negeri 1 Talamau”, Journal Of Computer Science And Technology, vol. 4, no. 3, pp. 220–225, Sep. 2026, doi: 10.59435/jocstec.v4i3.805.