"Proposition 28". Voter Information Guide | California Secretary of State. April 14, 2012. Archived from the original on April 14, 2012. Retrieved April 27, 2017.
"Legislative Procedure"(PDF). California State Assembly Office of the Chief Clerk. January 1, 2007. Archived from the original(PDF) on December 31, 2018.
"Proposition 28". Voter Information Guide | California Secretary of State. April 14, 2012. Archived from the original on April 14, 2012. Retrieved April 27, 2017.
"Legislative Procedure"(PDF). California State Assembly Office of the Chief Clerk. January 1, 2007. Archived from the original(PDF) on December 31, 2018.