Reeves, Carol
Routledge, 2005
Buku Teks
Athur L. Anger...[et.al]
John Wiley & Sons, 1972
Buku Teks
Forsythe, Alexander I.
John Wiley & Sons Inc. , 1970
Buku Teks
Hughes, John P.
Random House, 1966
Buku Teks
Pinker, Steven
Penguin books, 1994
Buku Teks