"松前城" [Matsumae Castle]. Dijitaru Daijisen (in Japanese). Tokyo: Shogakukan. 2013. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2013-12-14.
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"松前城" [Matsumae Castle]. Dijitaru Daijisen (in Japanese). Tokyo: Shogakukan. 2013. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2013-12-14.
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"松前城" [Matsumae Castle]. Dijitaru Daijisen (in Japanese). Tokyo: Shogakukan. 2013. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2013-12-14.