Parliaments of the world: a comparative reference compendium Vol.I
Facts on File Publications, 1986
 Buku Teks SO
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
Parliaments of the world: a comparative reference compendium Vol.II
Facts on File Publications, 1986
 Buku Teks SO
Committees in legislatures : a comparative analysis
edited by John D. Lees and Malcolm Shaw
Duke University Press, 1979
 Buku Teks SO