1. Croft Long E., Viau, A., (1974). Health care extension using medical auxiliaries in Guatemala. Lancet, 1, 127.
2. Djukanovic, V., Mach, E. P. (1975). Alternative approaches to meeting basic health needs in developing countries. World Health Organization, Geneva.
3. Ebrahim, G. J., (1975). A model of integrated community health care. Trop. Geog. Med. 28 — Supplement.
4. Ebrahim, G. J., (1978). Practical mother and child health in developing countries. Macmillan Press Ltd., London and Basingstoke.
5. Gish, O., (1975). Planning the health sector. Croom Helm. London.