Chambers, John Carlton, 1928-
An Executive's guide to forecasting
John Wiley & Sons, 1974
 Buku Teks
Bursk, Edward Collins
How to increase executive effectiveness /Edward C. Bursk
Cambridge, Mass, Harvard University Press
 Buku Teks
Bower, Marvin
The development of executive leadership / by Marvin Bower
Massachutts Harvard University Press , 1949
 Buku Teks
Jones, Manley Howe
Executive decision making / by Manley Howe Jones
Ill Irwin , 1957
 Buku Teks
Haskell Scchell, Erwin
Technique of executive control / Erwin Haskell Scchell
McGraw-Hill Book Company, INC, 1957
 Buku Teks