Encyclopedia of the American legislative system : studies of the principal structures, processes, and policies of Congress and the state legislatures since the colonial era; Volume II
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
 Buku Referensi
Encyclopedia of the American legislative system : studies of the principal structures, processes, and policies of Congress and the state legislatures since the colonial era; Volume III
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
 Buku Referensi
Encyclopedia of the American judicial system : studies of the principal institutions and processes of law; Volume I
edited by Robert J. Janosik
Charles Scribner`s Sons, 1987
 Buku Referensi
Keefe, William J.
The American legislative process congress and the state
Prentice-Hall, 1994
 Buku Teks
Encyclopedia of the American judicial system : studies of the principal institutions and processes of law; Volume II
edited by Robert J. Janosik
Charles Scribner`s Sons, 1987
 Buku Referensi