Common Ground Collective (2006-01-06). "Solidarity Not Charity"(PDF). Common Ground Relief Volunteer Handbook. Archived from the original(PDF) on 2007-10-20. Retrieved 2007-12-17.
Common Ground Collective (2006-01-06). "Solidarity Not Charity"(PDF). Common Ground Relief Volunteer Handbook. Archived from the original(PDF) on 2007-10-20. Retrieved 2007-12-17.