Johnson, J. Hearing Aid Fitting. In Ball, M. & Domico, J. (Eds.) The SAGE Encyclopedia of Communication Sciences and Disorders. Sage: Thousand Oaks, CA, 2019. (invited)
Johnson, J. Hearing Aids. In Ball, M. & Domico, J. (Eds.) The SAGE Encyclopedia of Communication Sciences and Disorders. Sage: Thousand Oaks, CA, 2019. (invited)