Youth - Substance use.

Youth substance abusea reference handbook / by: (書目-語言資料,印刷品)

Core competencies to prevent problem behaviors and promote positive youth development / by: (書目-語言資料,印刷品)

Substance abuse.

Youth

Core competencies.

Child Development.

Child Behavior Disorders

Behavior disorders in adolescence.

Problem youth.

School failure.

Violence in adolescence