Wikimedia
Wikipedia: Elijah Muhammad
Wikipedia offers biographical information on Elijah Muhammad, founder and leader of the Nation of Islam. Note that Wikipedia is a public source, not a scholarly one.
Encyclopedia Britannica
Encyclopedia Britannica: Elijah Muhammad
This entry from Encyclopedia Britannica features Elijah Muhammad, the leader of the black separatist religious movement known as the Nation of Islam (sometimes called Black Muslims) in the United States.