1. Ainsworth, M. (1992). Economic aspects of child fostering in Côte d'Ivoire. Living Standards Measurement Working Paper No. 92, World Bank, Washington, DC.
2. Unitary versus collective models of the household: time to shift the burden of proof?;Alderman;The World Bank Research Observer,1995
3. Appleton, S., Hoddinott, J., Krishnan, P., & Max., K. (1995). Does the labor market explain lower schooling? Evidence from three African countries. Center for the Study of African Economies.
4. Barros, P.R., & Lam, D. (1992). Why does parents' education matter to children's education, mimeo, Yale University Economic Growth Center.
5. Becker, G. (1981). A Treatise on the Family. Cambridge, MA: Harvard University Press.