Hicks, Lawrence E.
Ceping with packaging laws, an AMA management briefing
Mamerican Management Association , 1972
 Buku Teks SO
Spencer, Herbert
First principles / Herbert Spencer
Watts, 1937
 Buku Teks SO
Colombo, Ronald J.
The First Amendment and the business corporation
Oxford University Press, 2015
 Buku Teks
The AMA handbook of project management
edited by Paul C. Dinsmore, Jeannette Cabanis-Brewin
American Management Association, 2006
 eBooks
The AMA handbook of project management
edited by Paul C. Dinsmore, Jeannette Cabanis-Brewin
American Management Association, 2011
 eBooks