Congress reconsidered
Editor by Lawrence C.Dood; Bruce I. Oppenheimer
Congressional Quarterly Press, 1981
 Buku Teks
Griffith, Ernest S.
Congress its contemporary role/ Ernest S. Griffith
New York University press, 1952
 Buku Teks
Griffith, Ernest S.
Congress Its contemporary role/ Ernest S. Griffith
New York University press, 1956
 Buku Teks
Keefe, William J.
The American legislative process congress and the state
Prentice-Hall, 1994
 Buku Teks
Annual report of the librarian of congress 1990
Library of Congress; edited by James W. Mc. Chung
Library of Congress, 1991
 Buku Teks