Sumantoro, author
Binacipta, 1982
Buku Teks
edited by Freya Baetens
United Kingdom Cambridge University Press, 2013
Buku Teks
Sharpe, William F., author
Prentice-Hall, 1995
Buku Teks
Sornarajah, M, author
Cambridge University Press, 2017
Buku Teks
Schill, Stephan W., author
Cambridge University press, 2009
Buku Teks