Moorhead, Gregory, author
South-Western Cengage Learning, 2012
Buku Teks
Staw, Barry M., author
Macmillan, 1991
Buku Teks
Kolb, David A., author
Prentice-Hall, 1995
Buku Teks
Bass, Bernard M., author
Allyn and Bacon, 1973
Buku Teks
Muchinsky, Paul M., author
Wadsworth, 2000
Buku Teks