Murphy, Henry C., author
McGraw-Hill, 1950
Buku Teks
Wagner, Richard, author
Edward Elgar, 2012
Buku Teks
Sri Rahayuningsih, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2012
UI - Tesis (Membership)
The Group, 1994
Buku Teks
Hamilton, Alexander, author
Columbia University Press , 1934
Buku Teks