1. Abeysinghe, N. (2009). Shyness: A cross-cultural study. Unpublished MSc, University of Worcester, UK.
2. Interpersonal consequences of the pursuit of safety;Alden;Behaviour Research and Therapy,1998
3. Parental overprotection and interpersonal behavior in generalized social phobia;Alden;Behavior Therapy,2006
4. Social standards and social withdrawal;Alden;Cognitive Therapy and Research,1991
5. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,1987