1.
図書 |
[by] I. B. Singh [and] B. N. Sahay
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2.
図書 |
Everett M. Rogers
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3.
図書 |
Jeremy Howells and Michelle Wood
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4.
図書 |
Henry W. Chesbrough ; [foreword by John Seely Brown]
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5.
図書 |
Ankie M.M. Hoogvelt
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