Chesbrough, Henry
Open innovation : the new imperative for creating and profiting from technology / Henry W. Chesbrough.
Harvard business school press, 2003
 Buku Teks
Profiting from geographic information system
edited by Gilbert H. Castle III
GIS World, 1993
 Buku Teks
Brown, Norman
Profiting from ipos and small cap stocks / Norman Brown
Prentice-Hall, 1998
 Buku Teks
Smith, Eugene Sadler
The intuitive mind: profiting from the power of your sixth sense
John Wiley & Sons,Ltd, 2010
 Buku Teks
Wriggins, W. Howard
The ruler's imperative: strategies for political survival in Asia and Africa / by W. Howard Wriggins
Columbia University Press, 1969
 Buku Teks