regassa guluma, Bekele; alemayehu, Tadesse Major Advisor (PhD); demean, Melake Co Advisor Mr.
(Haramaya university, 2017-10)
Background: Substance abuse is defined as maladaptive pattern of substance use leading to clinically
significant impairment or distress within 12-month period. Globally, 3.3 million deaths or 139 million
disabilities of ...