Video screenshots 00:00 01:20 02:40 04:00 05:21 06:41 08:01 09:21 10:42 12:02 13:22 14:43 16:03 17:23 18:43 20:04 21:24 22:44 24:05 25:25 26:45 28:05 29:26 30:46 32:06 에 의해 출판 된 thesis13
