Shanks, Andrew, author
Routledge, 2001
Buku Teks
Hubbard, L. Ron, 1911-1986, author
Bridge Publications, Inc., 2012
Buku Referensi
Hubbard, L. Ron, 1911-1986, author
Bridge Publications, Inc., 2012
Buku Referensi
Kelsen, Hans, author
University of California Press, 1957
Buku Teks
Parikka, Jussi, 1976- , author
Polity Press, 2012
Buku Teks