1. Alexander, J. C. (1982). Theoretical logic in sociology. Volume 1: Positivism, presuppositions and current controversies. London: Routledge and Kegan Paul.
2. Allport, G. W. (1968). The person in psychology: Selected essays. Boston: Beacon.
3. Collins, R. (1988). Theoretical sociology. Orlando: Harcourt Brace Jovanovich.
4. Comte, A. (1830). Cours de philosophie positive (Vol. 6). Paris: Bachelier.
5. Coser, L. A. (1971). Masters of sociological thought. New York: Harcourt Brace Jovanovich.