Al-Mawardi, Imam, author
Gema Insani Press, 2000
Buku Teks
An-Na`im, Abdullah Ahmed, author
LKIS Yogyakarta, 2001
Buku Teks
Dhurorudin, author
Program Pascasarjana Universitas Indonesia, 2002
UI - Tesis (Membership)
M. Deden Ridwan, author
Belukar Budaya, 2002
Buku Teks
Smith, Wilfred C. (Wilfred Cantwell), author
Bhratara, 1964
Buku Klasik