Davis, R. (2013). Understanding volunteerism in an animal shelter environment. College of Professional Studies Professional Projects, Paper 54.
Markovitz, A.S. & Queen, R. (2009). Women and the world of dog rescue. Society and Animals 17(2009): 325-342.
Oostlander, J., Guntert, S.T., van Schie, S. & Wehner, T. (2013). Leadership and volunteer motivation. Nonprofit and Volunteer Sector Quarterly 20(10): 1-21.
Stroup, J.T., Dodson, K., Elias, K. & Gewirtzman, A. (2015). A passion for service?
Taniguchi, H. (2006). Men's and women's volunteering. Nonprofit and Volunteer Sector Quarterly 35(1): 83-101.
Widjaja, E. (2010). Motivation behind volunteerism. Retrieved online: http://scholarship.claremont.edu/cgi/viewcontent.cgi?article=1015&context=cmc_theses