University of California Press, 2004
Buku Teks
Brewer, Russell
Oxford University Press, 2014
Buku Teks
edited by Marc-David L. Seidel, Henrich R. Greve
Emerald, 2017
eBooks
Snow, Donald M., author
Pearson Longman, 2007
Buku Teks
Fadillah Putra, author
Universitas Brawijaya Press, 2012
Buku Teks