1. Ackerman, N. W. (1970). Child participation in family therapy. Family Process, 9(4), 403–410. https://doi.org/10.1111/j.1545-5300.1970.00403.x.
2. Altenmuller, E., & Schlaug, G. (2015). Apollo’s gift: New aspects of neurologic music therapy. Progress in Brain Research, 217, 237–252. https://doi.org/10.1016/bs.pbr.2014.11.029.
3. Alvin, J. (1977). The musical instrument as an intermediary object. British Journal of Music Therapy, 8(2), 7–12.
4. Armstrong, S. A., & Simpson, C. S. (2002). Expressive arts in family therapy: Including young children in the process. TCA Journal, 30(2), 2–9. Retrieved February 15, 2015 from Questia, https://www.questia.com/library/journal/1P3-285805851/expressive-arts-in-family-therapy-including-young.
5. Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (4th ed.). Thousand Oaks, CA: Sage.