Margolis, Oren, author
Oxford University Press, 2016
eBooks
Burke, Peter, author
Princeton University Press, 1986
Buku Teks
Vampa, Davide, author
Palgrave Macmillan, 2016
Buku Teks
Paolo Janni
The council for research in values and philoaophy, 2001
Buku Teks
Castelfranco, Giorgio, author
1968, Milano Fratelli Fabri
Buku Referensi