Buku Teks
Kish, Leslie
John Wiley & Sons, 1965
Buku Teks
Eriyanto
Lembaga Kajian Islam dan Studi (LKiS), 2007
Buku Teks
Slobogin, Christopher
Foundation press, 2000
Buku Teks
California : The Institute of International Studies, University of California, 1993
Majalah, Jurnal, Buletin