Routledge, 1993
Buku Teks
Joad, C.E.M., author
Clarendon Press, 1959
Buku Teks
Grimes, Alan P., author
Oxford University Press , 1959
Buku Teks
Grimes, Alan P., author
Oxford University Press , 1959
Buku Teks
Fowler, Robert Booth, author
Praeger, 1985
Buku Teks