Judul asli: Deciphering The Signs of God: A Phenomenological Approach to Islam.
judul asli: Mystical Dimension of Islam.
Judul asli: Deciphering The Signs of God: A Phenomenological Approach to Islam.
Bibliografi hlm. 177.
Judul asli : Risalatul Qusyairiyah fi'ilmi at-Tashawwufi.