Dirks, Jerald F., author
Serambi Ilmu Semesta, 2004
Buku Teks
edited by Mark Beaumont
Brill, 2018
eBooks
Goddard, Hugh, author
Serambi Ilmu Semesta, 2013
Buku Teks
Cucarella, Diego R. Sarrio, author
Brill, 2015
eBooks
Aydin, Mahmut
The Council for Research in Values and Philosophy, 2002
Buku Teks