保存日(永続的識別子) | |
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http://www.nistep.go.jp/achiev/l_all-j.html |
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2013/08/15 (info:ndljp/pid/8266336) |
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2012/08/06 (info:ndljp/pid/3517486) |
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2011/08/06 (info:ndljp/pid/2611642) |
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2010/11/12 (info:ndljp/pid/1195830) |
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2009/10/30 (info:ndljp/pid/286552) |
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2008/10/04 (info:ndljp/pid/258292) |
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2008/04/15 (info:ndljp/pid/283337) |
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2006/10/11 (info:ndljp/pid/245274) |
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2005/10/06 (info:ndljp/pid/260911) |
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2004/10/08 (info:ndljp/pid/259907) |
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2003/10/08 (info:ndljp/pid/237938) |
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2003/05/19 (info:ndljp/pid/236917) |
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