Used

Japanese literature The Battle of Sekigahara / Jun 宇治谷 / Ryo Hanmura

Used

Japanese literature Oeyo no Kata, the real mother of Iemitsu HIWA, and Kasuga-no-tsubone

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Japanese literature> The Following Three : Attack on Osaka-jo Castle and 防編

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Essays and essays Makurano Soshi / Seiko Tanabe

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Japanese literature Endless World

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Japanese literature Briquette and PC - Introduction to the Internet from 80's / Shigesato Itoi

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Japanese literature The Decisions of Warlords Who Moved History : How the Great Warlords Overcame the Crisis at that Time / Akira Tsumoto