How the Barcode Became An Integral Part of Our Lives | The Lightbulb Moment. Curiosity Stream. 27 abril 2024.
"The Future of Money" | 60 Minutes Archive. 60 minutes, 2015. 24 nov 2024
Why Tap-to-Pay Is Safer Than a Credit Card Swipe | WSJ Tech Behind. The Wall Street Journal. 17 abril 2023.