In addition to references cited in previous chapters:
Davis, Don, and Eugene Patronis. Sound System Design and Engineering. 3rd ed. Burlington, MA. Focal Press/Elsevier, 2006.
Everest, F. Alton and Ken C. Pohlmann. Master Handbook of Acoustics. 5th ed. New York: McGraw-Hill, 2009.
Fletcher, H., and W. A. Munson. 1933. “Loudness, Its Definition, Measurement, and Calculations.” Journal of the American Statistical Association 5: 82-108.
Levitin, Daniel J. This Is Your Brain on Music: The Science of Human Obsession. New York: Plume/Penguin, 2007.
McCarthy, Bob. Sound Systems: Design and Optimization. 2nd ed. Burlington, MA: Focal Press, 2009.
Pohlmann, Ken C. Principles of Digital Audio. 5th ed. New York: McGraw-Hill, 2005.
Robinson, D. W., and R. S. Dadson. 1956. “A Re-Determination of the Equal-Loudness Relations for Pure Tones.” 7: 166-181.
Thompson, Daniel M. Understanding Audio. Boston, MA: Berklee Press, 2005.
Tobias, J. V., ed. Foundations of Modern Auditory Theory. Vol. 1. New York: Academic Press, 1970.