Bibliografi: hlm. 171.
Judul asli: al Tashawwuf al Islami wa atsaruhu fi al tashawwuf al Indonesi al mu'ashir.
Thaharah al qulub wa al khudu' li allam al ghuyub, Indek : 623-627 hlm.
Bibliografi hlm. 331-336.
Judul asli: Deciphering The Signs of God: A Phenomenological Approach to Islam.