Snowden, Lynne L.
Terrorism : research, readings, and realities
Pearson-Prentice Hall, 2005
 Buku Teks
Nasr, Seyyed Hossein
Islam dalam cita dan fakta penerjemah dan Ideals and realities of Islam
Leppenas , 1983
 Buku Teks
Contemporary terrorism / edited by William Gutteridge
Facts on File, 1986
 Buku Teks
Western separatism : the myths, realities & dangers / edited by Larry Pratt & Garth Stevenson.
edited by Larry Pratt & Garth Stevenson
Hurtin Publishers, 1981
 Buku Teks
The Cambridge encyclopedia / edited by David Crystal
Cambridge University Press, 1990
 Buku Referensi