Hughes, John P., author
Random House, 1966
Buku Teks
Georgetown University Press, 1972
Buku Teks
edited by John Lyons
Penguin Books, 1973
Buku Teks
Ruqaiya Hasan, author
Oxford University Press,, 1989
Buku Teks
selected and introduced by Roy Harris
Routledge/Thoemmes Press, 1995
Buku Referensi