Strong, C.F.
Modern political constitutions an introduction to the comparative study of their history and existing forms
Sidgwick and Jackson, 1972
Buku Teks
Strong, C.F.
Konstitusi-Konstitusi politik Modern: Kajian Tentang Sejarah dan Bentuk-bentuk Konstitusi Dunia: An introduction to the comparative study of their history and existing form
Nuansa, 2004
Buku Teks
Heringa, A.W.
Constitutions compared : an introduction to comparative constitutional law
Metro, 2009
Buku Teks SO
Moore, Russell F.
Modern constitutions
Littlefield, Adams, 1957
Buku Teks
Wheare, K. C.
Modern constitutions
Oxford University Press, 1975
Buku Teks SO