1. Coale, A. J. (1972). The growth and structure of human population. Princeton, N.J: Princeton University Press.
2. Coale, A. J., & Demeny, P. (1966). Regional model life tables and stable population. Princeton, N.J: Princeton University Press.
3. Das, M., & Mohanty, S. K. (2012). Spatial pattern of fertility transition in Uttar Pradesh and Bihar: a district level analysis. Genus, 68(2), 81–106.
4. Elder, R. (1974). Targets versus extension education: the family planning programme in Uttar Pradesh, India. Population Studies, 28(2), 249–261.
5. Keyfitz, N. (1971). Migration as a means of population control. Population Studies, 25(1), 63–72.