Simons, Herbert W., author
Randon House, 1976
Buku Teks
Dori Wuwur Hendrikus, author
Kanisius, 1991
Buku Teks
Jowett, Gareth S., author
Sage, 2006
Buku Teks
Vancil, David L
Allyn and Bacon, 1993
Buku Teks
Ni Putu Sarilani Wirawan, author
2012
UI - Tesis (Open)