Englewood Cliffs, NJ Prentice-Hall 1991,
Buku Referensi
Budi Harsono, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1981
UI - Skripsi Membership
Black, Geoff
London : Prentice Hall, 2001,
Buku Referensi
Nurul Fatiha, author
Universitas Indonesia, 2007
UI - Tesis Membership
Rudi Bambang Trisilo, author
1987
UI - Skripsi Membership