Levine, David M., 1946-, author
Prentice-Hall, 1999
Buku Teks
O`Donnell, Jim, author
Que, 1996
Buku Teks
United Nations University, 1993
Buku Teks
edited by Mohsin S. Khan, Abbas Mirakhor
The institute for research and Islamic Studies, 1987
Buku Teks
Barnes, Belinda, author
CRC Press, Taylor & Francis Group, 2009
Buku Teks