Bibliografi : hlm. 629-636. SAS 2X7.3.
Judul asli: Ethico-religions conccepts in the Qur'an. Indeks hlm. 307-324.
Judul Asli : The Concept of Belief in Islamic Theology. SKY 2X3.8.
Judul asli: Maqaalat Al Islaamiyyiin waikhtilaaf Almushalliin, Jilid I.
Judul asli: Higher Learning in Islam: the Classical Period, A.D. 700-1.300. SHJ 2X7.34 Sta p. SKY 2X7.34 Sta p.