Oxford Oxford University Press, 1993
Buku Teks
Jennifer Coates, Pia Pichler, editor
Wile-Blackwell, 2011
Buku Teks
Civita Patriana, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi (Membership)
Brouwer, Dede, author
Foris Publications, 1989
Buku Teks
Cambridge University Press, 2005
eBooks