1. Brass, W. (1975). Methods for estimating fertility and mortality from limited and defective data. Methods for estimating fertility and mortality from limited and defective data.
2. Caughley, G. (1994). Directions in conservation biology. Journal of Animal Ecology, 215–244.
3. Daumerie, B., & Madsen, E. L. (2010). The effects of a very young age structure in Uganda. Population Action International, 1–21.
4. Dunfey, T. S. (2017). What is social change, and why should we care. Retrieved January 17, 2018.
5. Ezenwa, N. O. (2014). Linkages between public health and health demography. International Journal of Innovative Research and Development, 3(6).