Tracy, John A., author
John Wiley & Sons, 1983
Buku Teks
Tracy, John A., author
Wiley, 2014
Buku Teks
Prasetyo Utomo, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Tesis Membership
Budd, Thomas A., author
Alexander Hamilton Institute, 1961
Buku Teks
Gibson, Charles H., author
PWS-KENT Publishing , 1989
Buku Teks