http://purl.org/dc/terms/source
|
PACKAGE0010431
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http://sonic.sega.jp/sonic_heroes/summary.html (accessed 2018/11/24)
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https://ja.wikipedia.org/wiki/ソニック_ヒーローズ (accessed 2018/11/24)
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https://www.jp.playstation.com/software/title/slpm65431.html (accessed 2018/11/24)
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