Kelsen, Hans, author
Alumni, 2006
Buku Teks
Mercado, Leonardo N.
Divine Word University, 1976
Buku Teks
Deden Nurodin, author
2018
UI - Skripsi (Membership)
Madden, Edward H.
University Of Washington Press, 1968
Buku Teks
MacIntyre, Alasdair, author
Rontledge , 1998
Buku Teks