1. Toward the well-being of the elderly;ANZOLA-PEREZ E.,1985
2. Algumas considerações sobre a demografia da população idosa no Brasil;BERQUÓ E.S.;Cient. Cult.,1988
3. Migration surveys in low income countries: guidelines for survey and questionnaire design;BILSBORROW R.E.,1980
4. Research and the ageing population;BRODY J.A.,1988