Pasner, Richard A.
Little, Brown & Co., 1982
Buku Teks
Luksetich, William A., author
Little, Brown, 1982
Buku Teks
Gellhorn, Ernest, author
West, 2004
Buku Teks
Steiner, George Albert, 1912-, author
Random House, 1972
Buku Teks
Calvani, Terry, author
Little, Brown, 1988
Buku Teks