Hunger and Public Actionby J. Dreze and A. Sen, Clarendon Press, Oxford, 1989.
Forced Labour and Migration: Patterns of Movement within Africaedited by Abebe Zegeye and Shubi Ishemo; Hans Zell Publishers, London, Munich and New York, 1989, ISBN 0–905450–36–1.
Mozambique: Who Calls the Shotsby Joseph Hanlon, James Currey/Indiana University “Press, 1991.