Gaya APA

Lubis, I. et al (2003). Motivational interviewing in drug abuse services: a randomized trial (Vol. 71, No. 04, Tahun). : .

Gaya MLA

Lubis, Ischak. et al. "Motivational interviewing in drug abuse services: a randomized trial". Vol. 71, No. 04, Tahun : , 2003. Text.