1. Aiken, L. S., West, S. G., & Reno, R. R. (1991). Multiple regression: Testing and interpreting interactions. Sage.
2. Aldwin, C. M. (2007). Stress, coping, and development: An integrative perspective. Guilford Press.
3. Andersen, E. M., Malmgren, J. A., Carter, W. B., & Patrick, D. L. (1994). Screening for depression in well older adults: Evaluation of a short form of the CES-D. American Journal of Preventive Medicine, 10(2), 77–84.
4. Ardington, C., Case, A., Islam, M., Lam, D., Leibbrandt, M., Menendez, A., & Olgiati, A. (2010). The impact of AIDS on intergenerational support in South Africa: Evidence from the Cape Area Panel Study. Research on Aging, 32(1), 97–121.
5. Armstrong, P., & Burger, C. (2009). Poverty, inequality and the role of social grants: An analysis using decomposition techniques (Stellenbosch Economic Working Papers: 15/09). University of Stellenbosch.