Koontz, Harold
McGraw-Hill, 1984
Buku Teks
Drucker, Peter Ferdinand, 1909-2005
Harper & Brothers, 1954
Buku Teks
Terry, George Robert
Learning Systems, 1981
Buku Teks
Allen, Louis A.
McGraw-Hill, 1958
Buku Teks
edited Max D. Richards and William A. Nielander
South-Western Publishing, 1958
Buku Teks