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
Llamzon, Aloysius P., author
Oxford University press, 2014
Buku Teks
Gwynn, Maria A, author
Palgrave Macmillan, 2016
Buku Teks