Alan Cowell, "Iraq Chief, Boasting of Poison Gas, Warns of Disaster if Israelis Strike", New York Times, 3 April 1990 Alan Cowell (29 May 1990).
בדיקה אחרונה ב-16 ביולי 2008.  Alan Cowell, "Iraq Chief, Boasting of Poison Gas, Warns of Disaster if Israelis Strike", New York Times, 3 April 1990 Alan Cowell (29 במאי 1990).