editor, Carl Peters, Ben Warwick
Irwin Professional Publishing, 1997
Buku Referensi
Goodman, Michael
American Psychiatic Press , 1996
Buku Teks
Ade Ibadurrohman
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Tesis Membership
Hellier, Charles J.
McGraw-Hill, 2001
Buku Teks
edited by Joseph S. Wholey
Jossey-Bass Publishers, 1994
Buku Teks