Natalia Kristin Ardianti, author
Universitas Indonesia, 2006
UI - Tesis Membership
Ali Purwito Moesdradjad, author
Graha Ilmu, 2007
Buku Teks
Universitas Indonesia, 2001
UI - Skripsi (Membership)
Mitra Info, 1995
Buku Teks
Anton Martin, author
Universitas Indonesia, 2005
UI - Tesis (Membership)