Morgan, Hal
Symbols of America
Viking, 1986
Buku Teks
Beresniak, Daniel
Symbols of freemasonry
Editions Assouline, 1997
Buku Referensi
Chevalier, Jean
A dictionary of symbols
Blakwell, 1994
Buku Referensi
Turner, Victor
The forest of symbols
Cornell University Press, 1967
Buku Teks
Chebel, Malek
Symbols of Islam
Editions Assouline, 1997
Buku Referensi