M. Nijhoff Publishers, 1992
Buku Teks
by Samuel H. Beer ... [et al.]
Random House, 1965
Buku Teks
Paxton, John, author
Macmillan, 1976
Buku Referensi
Williams, E.N., author
Penguin Books, 1970
Buku Teks
Williams, E.N., author
Bodley Head, 1970
Buku Teks