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2. Research in Education: Evidence-Based Inquiry;McMillan,2006
3. The face of 2010: A Delphi poll on the future of psychotherapy;Norcross;Professional Psychology: Research and Practice,2002
4. E-Therapy: ethical considerations of a changing healthcare communication environment;Prabhakar;Pastoral Psychology,2013
5. Online counseling;Richards;Encyclopedia of cyber behavior,2012