Sufism : An Account of the Mystics of Islam / A.J. Arberry

 Arberry, A.J;

London Boston Sydney : Mandala Books Unwin PaperBacks , 1979

Ideals and Realities of Islam / Seyyed Hossein Nasr

 Nasr, Seyyed Hossein;

London : Mandala Books Unwin PaperBacks , 1979