America's drug-free schools: What makes them work? (1992, April). School Safety Update, 1-3.
Cleffman, V. G. (1992, Spring). Drug use and discipline: A disturbing connection. School Safety, 20-23.
Southwest Regional Center for Drug-Free Schools and Communities. (1993, Winter). The drugs stop here! School Safety, 25-27.
U.S. Department of Education. (1987). What works: Schools without drugs. Washington, DC: U.S. Government Printing Office.
Van Kammin, W., & Loeber, R. (1992, Spring). Drugs, delinquency and discipline. School Safety, 7-10.