Bluck, R.S
Routledge & Kegan Paul, Ltd, 1955
Buku Teks
Rapar, J.H., author
Rajawali, 1988
Buku Teks
The Bobbs-Merril,l Company, Inc, 1952
Buku Teks
Cornford, Francis Macdonald.
Routledge & Kegan Paul, Ltd, 1957
Buku Teks
Taylor, A.E. (Alfred Edward), 1869-1945, author
University Paperbacks, 1960
Buku Teks