1. UN Human Development Report, United Nations Development Programme, NY, USA (2004).
2. Heimann P, Issakov A, Kwankam SY. Guidelines for health care equipment donations. World Health Organization, Geneva, Switzerland (2000)
3. The World Health Organization.Formulating strategies for health for all by the year 2000. World Health Organization. Geneva, Switzerland (1979).
4. Health Technologies for the Developing World: Addressing the Unmet Needs
5. World Bank. International Development Goals: Strengthening Commitments and Measuring Progress, World Bank (2001).