1. Ackerman, D. M. ( 2001). Introduction. In D. M. Ackerman (Ed.), Prayer and Religion in the Public Schools (p. 2). Huntington, NY : Novinka Books .
2. Bosmajian, H. A. (Ed.). (1987). Freedom of Religion. New York, NY: Neal-Schuman .
3. Central Intelligence Agency. (2007, March 10). Central intelligence agency. Retrieved from http://www.Cia.gov
4. ENGEL v. VITALE.(2012, March) The Oyez Project at IIT Chicago-Kent College of Law. Retrieved from http://www.oyez.org/cases/1960-1969/1961/1961_468
5. First Amendment Schools. (2006). Everson v. board of education of Ewing township, 330 u.s. 1 (1947). Retrieved from http://www.firstamendmentschools.org/freedoms/case.aspx?id=467
6. Jefferson’s Letter to the Danbury Baptists The Draft and Recently Discovered Text. (1998, June). Library of Congress: Information Bulletin, 57(6). Retrieved from http://www.loc.gov/loc/lcib/9806/danpost.html
8. McElroy, J. H. (2001, April). Understanding the First Amendment’s Religion Clauses. THE INTERCOLLEGIATE REVIEW, 46(1), 33-40. Retrieved from http://www.mmisi.org/ir/46_01/46_01.pdf
9. Miller, R. D. (1986). The Law: Its Basis and Implications. In Religion in the Public Schools (p. 6). Arlington,VA: American Association of School Administrators.
10. Riley, R. W. (1998, May 19). [Letter to American Educators]. Copy in possession of United States Department of Education.