Harvard Business Review on Innovation
Harvard Business School Press, 2001
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Heldman, Robert K.
Future telecommunications : information applications, services & infrastructure
McGraw-Hill, 1993
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Ayres, Robert U.
Technological forecasting and long-range planning
McGraw-Hill, 1969
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Technological forecasting for industry and government : methods and applications
editor, James R. Bright
Prentice-Hall, 1968
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Technological transition from multi level perspectives
Artikel Jurnal