1. and , (1981), ‘Anticipated unemployment temporary layoffs, and compensating wage differentials’, in (ed.). Studies in Labor Markets, University of Chicago Press, Chicago, pp. 141–170.
2. Abt Associates (1982), ‘Informal housing in Egypt’. Report submitted to US AID, Cairo.
3. (1985), Advanced Econometrics. Blackwell, Oxford.
4. (1991a), ‘The structure of the Egyptian construction labor market and its developments since the mid-1970s’, in and (eds), Labor Absorption and Structural Adjustment: Egypt in the 1990s. American University in Cairo Press, Cairo, pp. 125–165.