Crash Course. (2015, January 30). The Bicameral Congress:Crash Course Government and Politics #2. [Video file]. Retrieved from https://www.youtube.com/watch?v=n9defOwVWS8
Crash Course. (2015, February 7). Separation of Powers and Checks and Balances: Crash Course Government and Politics #3. [Video file]. Retrieved from https://www.youtube.com/watch?v=0bf3CwYCxXw