Jones, Stephanie
Headhunting : a guide to executive search in Asia / Stephanie Jones
Prentice-Hall, 1995
 Buku Teks
Locke, John
John Locke : an essay concerning human understanding in focus
Routledge, 2000
 Buku Referensi
Hanke, John E.
Understanding business statistics/ John E. Hanke
Illinois Irwin, 1994
 Buku Teks SO
Locke, John
An essay concerning human understanding
J.M. Dent & Sons, 1947
 Buku Teks SO
Locke, John
An essay concerning human understanding
Hackett Publishing Company, Inc., 1996
 Buku Teks SO