www.tu-alinhas.pt
www.unodc.org/
www.emcdda.europa.eu
www.eib.emcdda.europa.eu
www.emcdda.europa.eu/themes/best-practice
http://euspr.org/
www.fad.es
www.socidrogalcohol.org
www.edex.es
www.cph.org.uk
www.drugpreventionevidence.info/default.asp
http://nrepp.samhsa.gov
http://modelprograms.samhsa.gov
www.cdc.gov/hiv/projects/rep/compend.htm
www.nida.nih.gov
www.colorado.edu/cspv/blueprints/index.html
www.surgeongeneral.gov/library/youthviolence/report.html
http://pt.eelda.org
www.ieanet.com/drogas