Smith, George Horsley
McGraw-Hill, 1954
Buku Teks
Kirkpatrick, C.A.
Houghton Miffiln, 1959
Buku Teks
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1991
UI - Skripsi Membership
Luciana
2012
UI - Tesis Open
Lowndes, Douglas
Pergamon Press , 1969
Buku Teks