Perbandingan spiritual well-being antara pengawal dan non pengawal tasawuf di kota besar (Studi kuantitatif pada para anggota Yayasan Islam Paramartha-Paguyuban Thariqah Kadisiyah wilayah Bandung, Jawa Barat)
Fakultas Psikologi Universitas Indonesia, 2001
 UI - Skripsi Membership
Toynbee, Arnold J.
An historian's approach to religion
Oxford University Press, 1956
 Buku Teks
Ferm, Vergillius
Living schools of religion (religion in the twentieth century)/ esdited by Vergilius Ferms
Littlefield, Adams, 1961
 Buku Teks SO
The World's religions
edited by Stewart Sutherland, Leslie Houlden, Peter Clarke, Friedhelm Hardy
Routledge, 1988
 Buku Referensi
Gaer, Joseph
How the great religions began
Dodd, Mead, 1956
 Buku Teks SO