Van Der Slik, Jack
Thomas Y. Crowell Company, 1977
Buku Teks
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, Legislative bodies
Buku Referensi
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
Buku Referensi
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
Buku Referensi
Fordham, Jefferson B.
University of Pennsylvania Press, 1959
Buku Teks