Bortolotti, Lisa
Polity Press, 2008
Buku Teks SO
Losee, John
Oxford University Press, 1980
Buku Teks SO
Okasha, Samir
Oxford University Press, 2016
Buku Teks SO
edited by Richard Boyd, Philip Gasper, and J. D. Trout
Bradford Book, 1997
Buku Teks SO
Whitehead, Alfred North, 1861-1947
Philosophical Library, 1948
Buku Teks SO