^ a b "Japans oldest companies" (in Japanese). Yonhap News. 14 May 2008. Archived from the original on 17 November 2009. Retrieved 28 March 2012. ^ a b c d Jae-kyoung, Kim (14 May 2008). "Centennial Firms Dry up in Korea". Korea Times. Retrieved 24 August 2012. ^ "Special project: Survey on the actual situation of companies that have been in business for more than 100 years nationwide (特別版:100歳以上の
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