Analysis of information sources in references of the Wikipedia article "Organization" in English language version.
It is also necessary [615513925...] to identify social systems that are not organizations. Many of these are enormously important, but they lack an organization's purposive activity. Among the more conspicuous 'non-organizations' are races and ethnic groups (they have no programs), social classes (their collective identities are not unequivocal and their rosters not exact), cliques and playgroups (they lack a collective identity), interest groups such as 'liberals' or 'old-fashioned conservatives' (they have no rosters).