1. Lenski, G.,The Religious Factor, New York, Doubleday, 1961.
2. Levin, J.S., and Schiller, P.L., ?Is There a Religious Factor in Epidemiology?? (under review).
3. Glock, C.Y., and Stark, R.,Religion and Society in Tension. Chicago, Rand McNally, 1965.
4. Bellah, R.N.,Beyond Belief. New York, Harper & Row, 1970.
5. Yinger, J.M.,The Scientific Study of Religion. New York, Macmillan, 1970.