1. Angeles, C.E. VOC comparative codebook B.Value of children project technical note No. 02. Honolulu: East-West Population Institute, East-West Center, 1978.
2. Arnold, F.S., Bulatao, R.A., Buripakdi, C., Chung, B.J., Fawcett, J.T., Iritani, T., Lee, S.J., & Wu, E.S.The value of children: A cross-national study, vol. 1. Honolulu: East-West Population Institute, East-West Center, 1975.
3. Bulatao, R.A. On the nature of the transition in the value of children.Current studies on the value of children. Honolulu: East-West Population Institute, East-West Center, 1979.
4. Caldwell, J.C. Toward a restatement of demographic transition theory.Population and Development Review 1976,2 321?366. (a)
5. Caldwell, J.C. The socio-economic explanation of high fertility.Changing African family project series, monograph 1. Canberra: Demography Department, Australian National University, 1976. (b)