- Rivera A. (2011). Businesses in your area, why don't they turn off? Unpublished manuscript. 11 pp.
- Rivera A. (2012). The Effects of Conservation Issue Involvement on 7th Graders in Northeast Ohio. Unpublished manuscript. 17 pp.
- Rivera A. Kids and Conservation: Helping students make a connection with nature and what they already know. Unpublished manuscript. 22 pp.