Artikel Jurnal
Bartholomew, John Ryan, author
Tiara Wacana Yogya, 2001
Buku Teks
Musa Asyarie, author
LESFI (Lembaga Studi Filsafat Islam, 2002
Buku Teks
Watt, William Montgomery, author
Edinburg University Press, 1980
Buku Teks
M. Dawam Rahardjo, 1942-, author
Mizan, 1993
Buku Teks