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WikiPedia: Sejong-daero http://english.chosun.com/site/data/html_dir/2012/... http://koreatimes.co.kr/www/news/opinon/2009/08/13... https://m1.juso.go.kr/gismap-new/MapIndex.do?code=... https://m1.juso.go.kr/gismap-new/MapIndex.do?code=... https://archive.today/20130411045031/http://koreaj... https://archive.today/20130411051634/http://koreaj...