1. Primary Health Care,1978
2. Health, population and development;Knowles;Soc. Sci. Med.,1980
3. Interrelation between health and population. Observations derived from field experiences;Grosse;Soc. Sci. Med.,1980
4. Selective primary health care: an interim strategy for disease control in developing countries;Walsh;New Engl. J. Med.,1979
5. Introduction;Bell;Soc. Sci. Med.,1980