http://purl.org/dc/terms/source
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https://collection.rcgs.jp/resource/PACKAGE0007393
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https://en.wikipedia.org/wiki/Origin_Systems (accessed 2018-10-25)
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https://ja.wikipedia.org/wiki/Origin_Systems (accessed 2018-10-25)
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https://www.mobygames.com/company/origin-systems-inc (accessed 2018-10-25)
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