Collins, David, author
Edward Elgar Publishing, 2015
Buku Teks
Sornarajah, M, author
Cambridge University Press, 2017
Buku Teks
Schill, Stephan W., author
Cambridge University press, 2009
Buku Teks
Schil, Stephen W., author
Cambridge University Press, 2013
Buku Teks
Sornarajah, M., author
Cambridge University Press, 2012
Buku Teks