1. A Short Scale for rating “Activity-Withdrawal” in Schizophrenics;VENABLES;J. Ment. Sci.,1957
2. VENABLES , P. H. 1968 Personal communication
3. The Law of Initial Values in Psychiatry;WILDER;Proc. Third World Congress of Psychiatry,1961
4. A Behaviour Rating Scale;WOLFF;A.J.O.T.,1961