Rowell, S.F.
Melbourne University Press, 1974
Buku Teks SO
Holt, Rinehart and Winston, 1985
Buku Teks SO
Montgomery, B.
The Word Publishing Comp, [date of publication not identified]
Buku Teks
edited by Lester Tanker
Luce, 1961
Buku Teks SO
Kennan, George F., 1904-
Little, Brown, 1967
Buku Teks SO