Schill, Stephan W., author
Cambridge University press, 2009
Buku Teks
Sornarajah, M., author
Cambridge University Press, 2012
Buku Teks
Starke, J.G., author
Butterworth , 1958
Buku Teks
Starke, J.G., author
Butterworth, 1977
Buku Teks
Jouannet, Emmanuelle Tourme, author
Cambridge University Press, 2014
Buku Teks