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INFORMATION DISTORTIONS IN SOCIAL SYSTEMS: THE UNDERGROUND ECONOMY AND OTHER OBSERVER-SUBJECT-POLICYMAKER FEEDBACKS
Feige, Edgar L., (2005)
Systemic crisis and the nonprofit sector : toward a political economy of the nonprofit health and social services sector
Estes, Carroll L., (1990)
Party and society : the Anglo-American democracies
Alford, Robert R., (1963)