Belliotti, Raymond A.
Dante's deadly sins : moral philosophy in hell
Wiley-Blackwell, 2014
 Buku Teks
Alighieri, Dante
The inferno / Dante Alighieri; translated by Henry Francis Cary
Wordsworth Classics of Worls Literature, 1998
 Buku Teks
International journal of reformed theology and life
International Reformed Evangelical Seminary and Westminster, 2016
 Majalah, Jurnal, Buletin
Hughes, Gerard J.
The Nature of God / Gerard J. Hughes
Routledge, 1995
 Buku Teks
Badiuzzaman Said Nursi
Dari koleksi risalah nur al-kalimat: seputar tujuan manusia, aqidah, ibadah dan kemukjizatan al-qur'an jilid 1
Anatolia Prenada Media Group, 2011
 Buku Teks