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

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