Universitas Indonesia, 2000
UI - Skripsi (Membership)
Gillette, Clayton P., author
Palmer avenue. Larchmont, 1995
Buku Teks
Universitas Indonesia, 1995
UI - Skripsi (Membership)
Whaley, Douglas J.
Harcourt Brace Legal, 1992
Buku Teks
Nickles, Steve H., author
West Publishing, 1993
Buku Teks