1. Urban household energy use in India;Alam;Energy Policy,1998
2. Becerra, J. (1997). Patrones de salud y pobreza en areas urbanas de bajos ingresos y respuesta de los servicios de salud a la luz de la equidad. Santiago de Cali.
3. Stretching the people’s housing resources (Indonesia);Benjamin;Habitat International,1987
4. Aspects of the quality of life in black townships in a South African city;Beukes;Social Indicators Research,1997
5. Booth, D., Hentschel, J., Holland, J., Lanjouw, P., & Herbert, A. (1998). Participation and combined methods in African poverty assessment: renewing the agenda. London: DFID.