1. World Development Report 1993 — Investing in Health,1993
2. Principles of IUATLD collaborative tuberculosis programmes;Enarson;Bull Int Union Tuberc Lung Dis,1991
3. Results of short course chemotherapy of tuberculosis: the Nicaraguan experience 1984–1987;Arguello;Bull Int Union Tuberc Lung Dis,1989
4. Tuberculosis in the present time: a global overview of the tuberculosis situation;Sudre,1991