[1] [CITE[iZettle/iZettle-API-sample-code]]
( ([TIME[2013-11-16 03:55:42 +09:00]] 版))
<https://github.com/iZettle/iZettle-API-sample-code>

[2] [CITE[iZettle Developer Site]]
( ([TIME[2013-10-17 13:48:23 +09:00]] 版))
<http://developer.izettle.com/>