Cherian, Joy
A.W. Sijthoff, 1975
Buku Teks
edited by Katia Yannaca-Small
Oxford University Press, 2010
Buku Teks
Akgul, Zeynep, author
Dissertation.com , 2008
Buku Teks
Schill, Stephan W., author
Cambridge University press, 2009
Buku Teks
Michael Waibel
Wolters Kluwer, 2010
Buku Teks