Roberts, Edgar V.
Prentice-Hall, 1977
Koleksi Publik
Headrick, Paul, 1957-
Wiley-Blackwell, 2014
Buku Teks
Barnet, Sylvan
Batsford Academic and Educational, 1985
Buku Teks
Messenger, William E.
Prentice-Hall, 1989
Buku Teks
Axelrod, Rise B.
1997
Multimedia