Show HN: XCIX.co - Licensing DRM-free shareable ebooks to teachers(xcix.co)3 points·by Michael-XCIX·13 ปีที่แล้ว·0 commentsxcix.coShow HN: XCIX.co - Licensing DRM-free shareable ebooks to teachershttp://xcix.co/license.php0 commentsPost comment—