Sani, B., & Imbuki, K.
(2017).
Effectiveness of Contingency Management Therapy on Drug Abuse Treatment among Teacher Trainees in Kano State, Nigeria.
NIU Journal Of Social Sciences, 2(2), 115-126.
Retrieved from https://www.kampalajournals.ac.ug/ojs/index.php/niujoss/article/view/85