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QR Codes: The Ultimate Guidebook (English Edition)
QR Codes & Mobile Marketing for the Small Business Owner: Connecting Merchants With Their Customers
The QR Code Marketing Guide (English Edition)
40 Ways to Use QR Codes For Mobile Marketing (Mobile Matters Book 9) (English Edition)
6 Steps to Smartphone Success: How to Use QR Codes in Your Mobile Marketing (Mobile Matters Book 10) (English Edition)