Functional assessment
Gordon Pershey, M. (2019). Functional assessment. In J. Damico, & M. Ball (Eds.), The SAGE Encyclopedia of Human Communication Sciences and Disorders (Vol. 1, pp. 788-790). SAGE Publications, Inc. Retrieved from https://sk.sagepub.com/reference/the-sage-encyclopedia-of-human-communication-sciences-and-disorders/i9863.xml; https://www.doi.org/10.4135/9781483380810.n262
