Thomas, Wright, author
Oxford University Press, 1941
Buku Teks
Kroeber, Karl, author
Harper and Row, 1965
Buku Teks
Kennedy, X. J., author
Pearson Longman , 2005
Buku Teks
Doren, Mark van, author
Hill & Wang, 1966
Buku Teks
Barrows, Herbert
Houghton Miffiln, 1959
Buku Teks