Nugroho, P.A. , Haerani, R., Farida, R.D.M. and Ansor, A.S. 2024. The Design of a Good Data Processing App Applying QR Code . Sinkron : jurnal dan penelitian teknik informatika. 8, 4 (Dec. 2024), 2626-2635. DOI:https://doi.org/10.33395/sinkron.v8i4.14189.