Islam from the prophet Muhammad to the capture of Constantinople

 Lewis, Bernard;

New York : Oxford University Press , 1987

The Two Faces of Islam : The House of Sa'ud from Tradition to Terror / Stephen Schwartz

 Schwartz, Stephen;

USA : Doubleday , 2002

Annual editions: world politics 09/10

 Purkitt, Helen E;

New York : McGraw-Hill Higher Education , 2010