1. On Lok senior health services — a community care organization for dependent adults;Ansak;Pride Institute journal of long-term home health care,1983
2. An abortion clinic ethnography;Ball,1970
3. Artworlds;Becker,1982
4. Symbolic interactionism: perspective and method;Blumer,1969
5. Carder, P. C. (1999). The value of independence in old age. PhD dissertation. Portland, OR: College of Urban and Public Affairs, Portland State University.