Al-Ghazali, Imam
Remaja Rosdakarya, 2000
Buku Teks SO
Tambunan, Erwin Immanuell
1987
UI - Skripsi Membership
AL-Jauziyah, Ibn Al-Qayyim
Mitra Pustaka, 2006
Buku Teks SO
translations by Bintang Suradi
League of Peoples Culture Indonesia, 1962
Buku Teks SO
Permanent Mission to the United Nations
Permanent Mission of The Republic of Indonesia, 2001
Buku Teks SO