1. Axelrod, Robert M. 1984. The Evolution of Cooperation. New York, NY: Basic Books.
2. Bendix, Reinhard. 1962. Max Weber, An Intellectual Portrait. Garden City, NJ: Anchor.
3. Benford, Robert D. 1997. “An Insider’s Critique of the Social Movement Framing Perspective.” Sociological Inquiry 67:409–30.
4. Blau, Peter M. 1963. “Critical Remarks on Weber's Theory of Authority.” American Political Science Review 57:305–16.
5. Blumer, Herbert. 1946. “Elementary Collective Behavior.” pp. 170–178 in New Outline of The Principle of Sociology, edited by A. M. Lee. New York, NY: Barnes and Noble.