Ansalam : Baina al-hadarah al-urubiyah wa al-asr al-wasit / Asy-Syaikh Kamil Muhammad Muhammad Uwaidah

 Uwaid, Asy; Syaikh Kamil Muhammad Muhammad;

Beirut : Dār al-Kutub al-ʿIlmiyyah , 1994

The Hidden Face of God / Gerald L.Schroeder

 Schroeder, Gerald L.;

New York : The Free Press , 2001