1. The war on marijuana in black and white: Billions of dollars wasted on racially biased arrests;ACLU,2013
2. The new Jim Crow: Mass incarceration in the age of colorblindness;Alexander,2012
3. Searching for ideological consistency in direct legislation voting;Banducci,1998
4. Washington poll survey, version 7;Barreto,2012
5. Morality at the ballot: Direct democracy and political engagement in the United States;Biggers,2014