Hermanto, T. and Monika, G. (2026) “Development of a GPS and QR Code Based Mobile Attendance Application to Improve Employee Discipline at PT Merpati Mahardika”, Journal of Engineering Technology and Science Integration (JETSI), 1(1), pp. 59–67. Available at: https://nordeoscholar.com/jetsi/article/view/12 (Accessed: 4 August 2026).