Parsons, Talcott, author
Prentice-Hall, 1977
Buku Teks
Kampourakis, Kostas, author
Cambridge University Press, 2014
Buku Teks
Prothero, Donald R.
McGraw-Hill Higher Education, 2004
Buku Referensi
Axelrod, Robert M., author
Basic Books, 1984
Buku Teks
edited by Anne Roe and George Gaylord Simpson
Yale University Press, 1961
Buku Teks