Papadopoulos, H.T., author
Chapman & Hall, 1993
Buku Teks
Azizah Rukmawati, author
Universitas Indonesia, 2002
UI - Tesis (Membership)
O`Brien, Dan, author
Polity Press, 2006
Buku Teks
Shapiro, Harold N., author
John Wiley & Sons, 1983
Buku Teks
Niven, Ivan Morton, 1915-, author
John Wiley & Sons, 1980
Buku Teks