Ghosh, Avijit, author
Dryden Press, 1990
Buku Teks
Warren G. Meyer [and others]
Elex Media Komputindo, 1992
Buku Teks
Rosenberg, Jerry M., author
John Wiley & Sons, 1995
Buku Referensi
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1990
UI - Skripsi (Membership)
Berman, Barry, author
Prentice-Hall, 2010
Buku Teks