- “Hejaz, El” in The Nuttall Encyclopædia by James Wood, London: Frederick Warne and Co., Ltd., 1907.
- “Hejaz,” in Encyclopædia Britannica, (11th ed.), 1911
- “Saudi Arabia” in The World Factbook by the CIA, 1982.
- “Saudi Arabia” in The World Factbook by the CIA, 2004.
- Medina Charter
- Basic Law of Saudi Arabia
- Saudi Arabia supports the Communists in Yemen, 1994 by Author:Osama bin Laden
- China Saudi Arabia Communique Establishing Diplomatic Relations