1. American Psychological Association. (2009). Civic Engagement. https://www.apa.org/education-career/undergrad/civic-engagement
2. Applied Population Laboratory. (2009). Aging in Wisconsin.http://www.apl.wisc.edu/publications/aging_in_wisconsin.pdf
3. Bacsu, J.vR., Jeffery, B., Johnson, S., Martz, D., Novik, N., & Abonyi, S. (2012). Healthy aging in place: Supporting rural seniors’ health needs. Online Journal of Rural Nursing and Health Care, 12(2), 77–87.
4. Beyerlein, K., & Hipp, J. (2006). A two-stage model for a two-stage process: How biographical availability matters for social movement mobilization. Mobilization: An International Quarterly, 11(3), 299–320.
5. Bureau of Labor Statistics. (2009). Volunteering in the United States, a supplement to the September 2009 Current Population Survey. Washington, DC: United States Department of Labor. http://www.bls.gov/news.release/pdf/volun.pdf. Accessed November 15, 2020.