1. The World Bank Working Papers Series;Eduard Bos,1991
2. Das Gupta, A. (1972). Study of the historical demography of India. In D. V. Glass & R. Revelle (Eds.).Population and social change pp. 419?435. London: Edward Arnold.
3. Davis, Kingsley. (1951).The population of India and Pakistan, chapter 4. Princeton, New Jersey: Princeton University Press.
4. Department of Family Welfare, Ministry of Health. (July, 1990).Analytical review of couple protection rates (1989). New Delhi: Evaluation and Intelligence Division, 1990.
5. Ministry of Health and Family Welfare, Government of India. (1982).Statement of national health policy. New Delhi: Department of Family Welfare.