Wright, Alex
Oxford University Press, 2014
Buku Teks SO
Hasluck, Paul
Melbourne University Press, 1977
Buku Teks SO
edited by Brian L. Keeley
Cambridge University Press, 2006
Buku Teks SO
Franssens, Jean-Paul
De Harmonie, 1991
Buku Teks
Cox, Paul
Currency Press, 1998
Buku Teks SO