Montgomery, B.
The Word Publishing Comp, [date of publication not identified]
Buku Teks
Kennan, George F., 1904-
Little, Brown, 1967
Buku Teks SO
Hawke, Bob
William Heinemann Australia, 1994
Buku Teks SO
Doyle, Arthur Conan, 1859-1930
Oxford University Press, 1993
Buku Teks SO
Doyle, Arthur Conan, 1859-1930
Gramedia Pustaka Utama, 2015
Buku Teks SO