1. Alberto, P. A., & Troutman, A. C. (2009). Applied behavior analysis for teachers. Upper Saddle River: Merrill/Pearson.
2. Behavior Analyst Certification Board (2014). Professional and ethical compliance code for behavior analysts. Retrieved from http://bacb.com/wp-content/uploads/2016/01/160120-compliance-code-english.pdf
3. Business Management Daily. (2013). 5 steps toward a fair–and firm–progressive discipline policy. HR Specialist: North Carolina Employment Law, 7(10), 6.
4. Centre for Addiction and Mental Health (2016). Dual Diagnosis. Retrieved from: http://ontario.cmha.ca/mental-health/mental-health-conditions/dual-diagnosis/
5. Cipani, E. (2014). Comorbidity in “DSM” childhood mental disorders: A functional perspective. Research on Social Work Practice, 24(1), 78–85.