edited by Anna M. Babel
Cambridge University Press, 2016
Buku Teks
Ball, Rodney
Routledge, 1997
Buku Teks
Jahr, Ernst Hakon
Edinburgh University Press Ltd, 2014
eBooks
Hill, John W.
Prentice-Hall, 1975
Buku Teks
Richards, Jack C.
Cambridge University Press, 2015
Buku Teks