1. Andrew, S. H. (1977). An evaluation of two stress-challenge programs for delinquent youth. Unpublished master’s thesis, Southern Illinois University, Carbondale∗
2. The community adjustment of male training school recidivists: Part II, The D.A.R.E. experience;Birkenmayer,1976
3. A short term community based early stage intervention program for behavior problem youth;Burdsal;Journal of Clinical Psychology,1980
4. Callahan, R. C. (1989). Academic and therapeutic potential of the Sierra II process: An evaluation of an adapted Outward Bound diversion program for adjudicated juvenile delinquents. Unpublished doctoral dissertation, Old Dominion University, Norfolk, Virginia∗
5. A comparative study of two training programs in Florida for delinquent youths: Eckerd Wilderness Camping and State training schools;Carter,1979