WHO. TB/HIV a clinical manual 1996. Geneva: World Health Organization; 1996. WHO/TB/ 96.200
WHO. Treatment of tuberculosis: guidelines for national programmes. 2nd.ed. Geneva: World Health Organization; 1997. WHO/TB/97.220
WHO. Tuberculosis control in refugee situations: an interagency field manual. Geneva: World Health Organization; 1997. WHO/TB/97.221