[[https://pdfs.semanticscholar.org/9829/7eea1158d838d50621d92ef84c8797079121.pdf|Barcodes for digital transactions]]

[[https://www.gsma.com/mobilefordevelopment/programme/mobile-money/the-use-of-barcodes-in-mobile-payments-scanning-the-possibilities/|The use of Barcodes in Mobile Payments: Scanning the Possibilities]]


[[http://www.waspbarcode.com/buzz/future-barcodes/|Future of Barcodes, RFID, & Image Barcodes; How They Will Impact IOT]]

[[https://economictimes.indiatimes.com/industry/banking/finance/banking/one-nation-under-code-how-india-leads-the-way-in-the-interoperability-of-qr-code-for-payments/articleshow/60986772.cms|One nation, under code: How India leads the way in the interoperability of QR code for payments]]