Gass, William H
Harper & Row, 1968
Buku Teks
Gray, Alice
Bethlehem Publisher, 2002
Buku Teks
Wells, H.G., author
Longmans, 1950
Buku Teks
Conrad, Joseph, 1857-1924, author
Oxford University Press, 1990
Buku Teks
Forsyth, Frederick, 1938-, author
St. Martin's Paperbacks, 2001
Buku Teks