The World's religions
edited by Stewart Sutherland, Leslie Houlden, Peter Clarke, Friedhelm Hardy
Routledge, 1988
 Buku Referensi
Living schools of religion (religion in the twentieth century)
edited by Vergilius Ferms
Littlefield, Adams, 1961
 Buku Teks SO
The concise encyclopedia of living faiths
Hutchinson, 1959
 Buku Referensi
The World's religions: Islam
edited by Peter Clarke
Routledge, 1988
 Buku Teks SO
Azyumardi Azra
Japan, Islam, the muslim world and Indonesia : past and present
Japan Foundation, 2004
 Buku Teks SO