The Wisdom Of The Prophets

1928

Journal of the History of Sufism

Kenneth Honerkamp 

2003

The Encyclopedia of Sufism

Sayyad Mohammad Zauqi Shah Chisti 

2010Sufism / Mystic

The Popularisation of Sufism In Ayyubid And Mamluk Egypt 1173-1325

Nathan Hofer 

2015

Indian Sufism Since The Seventeenth Century

Nile Green 

2006