Andriati, S. L., and D. . Aprilia Batubara. “The Validity of QR-Code Digital Signature in Contract Towards The Evidence Agenda In Civil Court”. Mahadi: Indonesia Journal of Law, vol. 3, no. 2, Aug. 2024, pp. 95-102, https://talenta.usu.ac.id/Mahadi/article/view/17732.