Beard, Charles A.
The American spirit
Macmillan, 1942
 Buku Teks
Smith, John E.
Semangat filsafat Amerika=The spirit of American philosophy / John E. Smith; penerjemah, Marianto S.
Yayasan Sumber Agung , 1995
 Buku Teks
Montesquieu, Charles de Secondat,1689-1755
The spirit of the laws
Hafner Press, 1949
 Buku Teks
Etzioni, Amitai
The Spirit of community
A Touchestone Book, 1994
 Buku Teks
Raymer, Robert
Spirit of Malaysia
Editions Didier Millet, 2011
 Buku Referensi