O’Toole P. & Barabasz M. (1997). Effects of Rational Emotive Therapy and REST on Social Anxiety.
6th International REST Conference. San Francisco.
Pudvah M.B. & Rzewnicki R. (1990). Six Months in the Tank: The Long-Term Effects of Flotation Isolation on
State Anxiety, Hostility, and Depression. Restricted Environmental Stimulation: Research and Commentary. pp.79-85.
Toledo, Ohio: Medical College of Ohio Press.