International Labour OrganizationDiarsipkan October 24, 2011, di Wayback Machine., Freedom of association - Digest of decisions and principles of the Freedom of Association Committee of the Governing Body of the ILO. Fifth (revised) edition, 2006.
International Labour OrganizationDiarsipkan October 24, 2011, di Wayback Machine., Freedom of association - Digest of decisions and principles of the Freedom of Association Committee of the Governing Body of the ILO. Fifth (revised) edition, 2006.