Allswang, John M. The Initiative and Referendum in California, 1898 - 1998. Palo Alto: Stanford University Press, 2000.

Boes, Mette A. The Supermajority Vote Provision to Ratify Constitutional Initiatives: Would it Restore the Process to the People? Master's thesis, University of Colorado-Denver, 2002.

Bowler, Shaun, Todd Donovan and Caroline J. Tolbert (eds.). Citizens as Legislators: Direct Democracy in the United States. Columbus: Ohio State University, 1998

Broder, David S. Democracy Derailed: Initiative Campaigns and the Power of Money. Harcourt Brace, 2000.

California Commission on Campaign Financing. Democracy by Initiative: Shaping California's Fourth Branch of Government. Los Angeles: Center for Responsive Government, 1992.

Cronin, Thomas E. Direct Democracy: The Politics of Initiative, Referendum, and Recall. Cambridge: Harvard University Press, 1989

Dinan, John J. Keeping the People's Liberties: Legislators, Citizens and Judges as Guardians of Rights. Lawrence: University Press of Kansas, 1998.

DuBois, Philip L., and Floyd Feeney. Lawmaking by Initiative: Issues, Options and Comparisons. New York: Agathon Press,1998.

--------------------. Improving the California Initiative Process: Options for Change. (Berkeley: The California Policy Seminar, University of California, 1992.

Ellis, Richard J. Democratic Delusions: The Initiative Process in America. Lawrence: University Press of Kansas, 2002.

Gerber, Elisabeth R. Stealing the Initiative: How State Government Responds to Direct Democracy. Upper Saddle River, N.J.: Prentice Hall, 2001.

--------------------. The Populist Paradox. Princeton, N.J.: Princeton University Press, 1999.

Graham, Virginia. A Compilation of Statewide Initiative Proposals Appearing on Ballots Through 1976. Washington, D.C.: Library of Congress, 1978.

Halstead, T.J. State regulation of the initiative process : background and analysis of issues in Buckley vs. American Constitutional Law Foundation, Inc., et al. Washington, D.C.: Congressional Research Service, Library of Congress, 1999.

Haskell, John. Direct Democracy or Representative Government? Dispelling the Populist Myth. Boulder, Colo.: Westview Press, 2001.

Magleby, David B. Direct Legislation: Voting on Ballot Propositions in the United States. Baltimore: Johns Hopkins University Press, 1984.

McGuigan, Patrick B. The Politics of Direct Democracy in the 1980s: Case Studies in Popular Decision Making. Washington, D.C.: Free Congress Research and Education Foundation, 1985.

Oakley, Lisa and Thomas Neale. Citizen Initiative Proposals Appearing on State Ballots, 1976 - 1992. Washington, D.C.: Library of Congress, 1995.

Ranney, Austin. The Referendum Device. Washington, DC: American Enterprise Institute for Public Policy Research, 1981.

Rosenthal, Alan. The Decline of Representative Democracy: Process, Participation and Power in State Legislatures. Washington, D.C.: Congressional Quarterly Press, 1998.

Schmidt, David D. Citizen Lawmakers: The Ballot Initiative Revolution. Philadelphia: Temple University Press, 1989.

Schrag, Peter. Paradise Lost: California's Experience, America's Future. New York: The New Press, 1998.

Schultz, Jim. The Initiative Cookbook: Recipes and Stories from California's Ballot Wars. San Francisco: Democracy Center, 1998.

Smith, Daniel A. Tax Crusaders and the Politics of Direct Democracy. New York: Routledge, 1998.

Waters, M. Dane (ed.). The Battle Over Citizen Lawmaking. Durham: Carolina Academic Press, 2001.

Zimmerman, Joseph F. The Initiative: Citizen Lawmaking. Westport, Conn.: Praeger, 1999.

--------------------. The Recall: Tribunal of the People. Westport, Conn.: Praeger, 1997.

--------------------. The Referendum: The People Decide Public Policy. Westport, Conn.: Praeger, 2001.