Erikson, Erik H.
Gandhi's truth : on the origins of militant nonviolence
W.W. Norton, 1969
Buku Teks SO
Rahman, Fazlur
Islam
Pustaka, 2000
Buku Teks SO
Rahman, Fazlur
Islam
Bandung Pustaka 1984
Buku Teks
Islam
edited by John Alden Williams
George Braziller, 1962
Buku Klasik
Schuon, Frithjof
Memahami Islam = Understanding islam
Pustaka, 1983
Buku Teks SO