1. Alderman, H. & Chishti, S. (1991). Simultaneous determination of household and market-oriented activities of women in rural Pakistan, pp. 245?265, in: T.P. Schultz (ed.), Research in Population Economics, Vol. 7. Greenwich, CT: JAI Press.
2. Anderson, K., King, E. & Wang, Y. (1993). Feedback effects of the labor market on schooling choice in Malaysia. Paper presented at the 1993 annual meeting of the Population Association of America, Cincinnati, USA.
3. Bauer, J. & Racelis, R. (1991). Household characteristics, earnings, and the activity status of Filipino youth. Paper presented at the 1991 annual meeting of the Population Association of America, Washington, DC, USA.
4. Becker, G.S. & Lewis, H.G. (1974). Interaction between quantity and quality of children, pp. 81?90, in: T.W. Schultz (ed.), Economics of the family. Chicago: National Bureau of Economic Research, University of Chicago Press.
5. Population and Labour Policies Programme Working Paper;R.E. Bilsborrow,1987