International IDEA
International IDEA, 2000
Buku Teks
Norbert Eschborn; Joyce Holmes Richardson; Henriette Litta
Konkrad-Adenauer-Stiftung, 2005
Buku Teks
Marco Bunte
Routledge, 2009.
Buku Teks
Satya Arinanto
Faculty of law University of Indonesia, 2000
Buku Teks
Klinken, Gerry van
Routledge, 2007
Buku Teks