1. Declaration of Alma Ata;World Health Organization,1978
2. Selective primary health care: an interim strategy for disease control in developing countries;Walsh;New Engl. J. Med.,1979
3. Formulating strategies for health for all by the year 2000;WHO;WHO Health for All Series No. 2,1979
4. Expanded programme on immunization. Management Training Course. Module 2: Establishing Priorities among Diseases;WHO,1978