1. American Speech‐Language‐Hearing Association. (1993).Definitions of communication disorders and variations. Retrieved fromhttps://www.asha.org/policy/rp1993‐00208/
2. American Speech‐Language‐Hearing Association. (2016).Scope of practice in speech‐language pathology.https://doi.org/10.1044/policy.SP2016‐00343
3. Bailey A. L. &Heritage M.(2010).English language proficiency assessment foundations: External judgments of adequacy. Retrieved from the Evaluating the Validity of English Language Proficiency Assessments (EVEA) website:http://www.eveaproject.com/doc/Generic%20ELPA%20Foundations%20Document%20FINAL%208%202%2010.pdf