Coldstream, Nicola
Oxford University Press, 2002
Buku Teks
Nicholas, David, author
Longman, 1992
Buku Teks
McGarry, Daniel D., author
Littlefield, Adams, 1968
Buku Teks
Murray, Alexander, author
Oxford University Press, 2016
eBooks
edited Muhammad Ali Khalidi
Cambridge, 2005
Buku Teks