McWhinney, Edward
Federal constitution-making for a multi-national world
A.W. Sijthoff, 1966
 Buku Teks
Evaluating federal systems / edited by Bertus De Villiers
M. Nijhoff Publishers, 1994
 Buku Teks
Filippov, Mikhail
Designing Federalism: a theory of self-sustainable federal instutions
Cambridge University Press, 2003
 Buku Teks
Joske, Percy Ernest
Australian federal government
Butterworth, 1967
 Buku Teks
A nation of states : essays on the American federal system
edited by Robert A. Goldwin
Rand McNally, 1963
 Buku Teks