Schodek, Daniel L., author
Prentice-Hall, 1998
Buku Teks
Nervi, Pier Luigi, author
McGraw-Hill , 1956
Buku Teks
Borel, Emile
Dover Publ., 1962
Buku Teks
Montesquieu, Charles de Secondat,1689-1755, author
Hafner Press, 1949
Buku Teks
Collier, John G. (John Greenwood), author
Cambridge University Pers, 1994
Buku Teks