Whitehead, Alfred North, 1861-1947
The aims of education and other essays
Free Press, 1968
 Buku Teks
Beattie, John
Other cultures : aims, methods, and achievements in social anthropology
Free Press, 1964
 Buku Teks SO
Beattie, John
Other cultures; aims, methods and achievements in social anthropology
Free Press of Glencoe, 1966
 Buku Teks
Mill, J.S.
Utilitarianism and other essays
Penguin Books, 1987
 Buku Teks
Santayana, George
The birth of reason and other essays
Columbia University Press, 1995
 Buku Teks SO