Farley, John E.
American social problems : an institutional analysis
Prentice-Hall, 1987
 Buku Teks
Kelly, Alfred H.
The American constitution, its origin and development
W.W. Norton, 1955
 Buku Teks
Kelly, Alfred H.
The American constitution its origins and development
W.W Norton & Company Inc., c 19
 Buku Teks
Kelly, Alfred H.
The American constitution its origins and development
W.W. Norton & Company. Inc., 1963
 Buku Teks
Kelly, Alfred H.
The American constitution its origins and development
W.W. Norton & Company, 1955
 Buku Teks