Nugroho, P. A. ., R. Haerani, R. D. M. . Farida, and A. S. . Ansor. “The Design of a Good Data Processing App Applying QR Code ”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 8, no. 4, Dec. 2024, pp. 2626-35, doi:10.33395/sinkron.v8i4.14189.