1. Adona, N., Gronke, P., Manson, P. & Cole, S. (2019). Stewards of Democracy.https://evic.reed.edu/wp-content/uploads/2020/09/2019_DemocracyFund_StewardsOfDemocracy.pdf Retrieved January 6, 2023.
2. Models of electoral system change
3. Jim Crow 2.0? Why States Consider and Adopt Restrictive Voter Access Policies
4. Berman, D. R. (2014). The Future of’directDemocracy’in Arizona: Petition Circulators, Election Officials, and the Law. Morrison Institute for Public Policy. https://morrisoninstitute.asu.edu/sites/default/files/elex_signatures.pdf. Retrieved January 6, 2023.