Aji Artanto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2010
UI - Tesis (Open)
Randel, Jim, author
Facts on File Publications, 1986
Buku Teks
editor, Joseph L. Pagliari
Irwin, 1996
Buku Referensi
Ratih Puspitaningtyas Faeni, author
2001
UI - Tesis (Membership)
Jaffe, Austin J., author
Prentice-Hall, 1982
Buku Teks