Parliaments of the world: a comparative reference compendium Vol.II
Facts on File Publications, 1986
 Buku Teks
Parliaments of the world: a comparative reference compendium Vol.I
Facts on File Publications, 1986
 Buku Teks
Parliaments of the world: a comparative reference compendium: volume I
Inter-Parliamentary Union
Facts on File Publications, 1986
 Buku Referensi
Parliaments of the world : a comparative reference compendium : volume II
Inter-Parliamentary Union
Facts on File Publications, 1986
 Buku Referensi
Beyond Westminster and Congress : the Nordic experience / edited by Peter Esaiasson, Knut Heidar
Ohio State University Press, 2000
 Buku Teks