NIM: F0640753. Bibliografi hlm. 81-84.
JA:Truth and Method.
JA=Majaalishus shaalihiin.
Judul Asli : God, Islam and the skeptic Mind: astudy on faith, relegion diversity, etics, and the problem of evil, Indeks : 329-333 hlm.
Bibliografi hlm. 191-197, Indek: 199-200 hlm.
Judul asli : Minhaj al muslim.