Blum, Mark
Chronicle Books, 1998
Buku Referensi
Berenbaum, May R., author
Addison-Wesley, 1995
Buku Teks
edited by Mark A. Jervis
Springer, 2005
Buku Teks
edited by Frederick W. Stehr
Kendall/Hunt, 1991
Buku Teks
Rofik Sofyan, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Tesis (Open)