Friedrich, Carl J.
Constitutional government and democracy theory and practice in Europe and America
Blaisdell, 1949
 Buku Teks SO
Beaumont, Elizabeth
The civic constitution: civic visions and struggles in the path toward constitutional democracy
Oxford University Press, 2014
 Buku Teks SO
Zurn, Christopher F.
Deliberative democracy and the institutions of judicial review
Cambrigde University Press , 2009
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Constitutional Dialogue: rights, democracy, institutions
Cambridge University Press, 2019
 eBooks
Democracy and pluralism in Africa
edited by Dov Ronen
Lynne Rienner, 1986
 Buku Teks SO