Wilson, James Q., author
A Touchstone Book, 1985
Buku Teks
Marmo, Marinella, author
Sage, 2016
Buku Teks
Quinney, Richard, author
Little, Brown, 1970
Buku Teks
Johnson, Elmer Hubert
Ill Dorsey Pres, 1974
Buku Teks
Findlay, Mark, author
Cambridge University Press, 1999
Buku Teks