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2. Bernknopf , S. Performance based counselor certification. Presented at the annual meeting of the American Personnel and Guidance Association, Washington, D.C. March 1978
3. A radical change in counselor education and certification;Brammer;The Personnel and Guidance Journal,1971
4. Chance v. Board of Examiners. 496 F. 2d 820 1974
5. Dent v. West Virginia 129 U.S. 114 (1889)