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 (Jun. 2026), 59–67. DOI:https://doi.org/10.68627/jetsi.v1i1.12.