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     137-715, #6F, Korea Federation of Teacher's Associations, 142, Woomyeon-Dong, Seocho-Ku,
     Seoul, Korea
     Head Office / Tel : 82-2-576-7070(Ext.221) Fax : 82-2-546-0578
     Research Institute / Tel : 82-2-576-2611 Fax : 82-2-576-0578