Derry, Gregory N., author
Princeton University Press , 1999
Buku Teks
Grayson-Smith, Hugh, author
Prentice-Hall, 1967
Buku Teks
Reinfeld, Fred, author
Sterling Pub. Co, 1961
Buku Teks
LAPAN, 2007
Multimedia
Whitehead, Alfred North, 1861-1947, author
New American Library, 1956
Buku Teks