Rothberg, Robert R., author
Corporate strategy and product innovation
The Free Press, 1981
 Buku Teks
Wheelwright, Steven C., author
Revolutionering product development: quantum leaps in speed, efficiency and quality/ Steven C.Wheelwright
The Free Press, 1992
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Weber, John A., author
Growth apportunity analysis
Reston, 1976
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Siegel, Eric S.
The Arthur young business plan guide / Eric S. Siegel, Loren A. Schultz, Brian R. Ford; edited by David C. Carney
John Wiley & Sons, 1987
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Donnelly, Thomas C.
The Government New Mexico / Thomas C. Donnelly
The University of Mexico Press, 1953
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