Steele, James, author
Academy Editions, 1992
Buku Teks
Steele, James, author
Academy Editions, 1992
Buku Teks
Lloyd, Seton
Harmonsworth Penguin Books 1956
Buku Teks
Hutchinson, G.O., author
Clarendon Press, 1990
Buku Referensi
guest edited by Nicholas Boyarsky and Peter Lang
Wiley, 2003
Buku Teks