Justice M. Taqui Usmani
Do Not Love This World: this world is not simply wealth
Rightway Publication, 2002
 Buku Teks SO
The world's religions: Islam
edited by Peter Clarke
Routledge, 1990
 Buku Teks SO
Islam in concept / World Assembly of Muslim Youth
World Assembly of Muslim Youth, s.a.
 Buku Teks SO
The Muslim almanac : a reference work on the history, faith, culture, and peoples of Islam
Azim A. Nanji, editor
Gale Research, 1996
 Buku Referensi
Spuler, Bertold
The muslim world : a historical survey
E.J. Brill, 1960
 Buku Teks SO