Elliot, Jay, author
Ufuk Press, 2011
Buku Teks
Stone, Christopher D.
Harper & Row , 1975
Buku Teks
Frazier, Charles
Vintage Books , 1997
Buku Teks
Adams, Walter, 1922-1998, author
Prentice-Hall, 2001
Buku Teks
Durand, Edward Dana
Ginn and Company , 1930
Buku Teks