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Worthless paper receipts | Seonyong Park | TEDxUNIST
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Added Jul 12, 2016
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Tons of paper have been wasting on receipts in every day. With this issues, the speaker is leading to a convenient, eco-friendly, and "smart" solution.

a planner of mobile receipt platform company 'twodep'

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at