A self-help guide published by SAMHSA.
http://store.samhsa.gov/product/Making-and-Keeping-Friends-A-Self-Help-Guide/SMA-3716
Social Enhancement Workbook
A workbook intended to help peers, together with a case manager or other support person, increase their participation in social activities in the community. Published by the Temple University on Community Inclusion (formerly the UPENN Collaborative).