Rujukan Pencabaran Andrew Johnson

  1. ↑ Varon, Elizabeth R. "Andrew Johnson: Domestic Affairs". Charlottesville, Virginia: Miller Center of Public Affairs, University of Virginia. Dicapai pada April 14, 2018.
  2. ↑ Glass, Andrew (December 19, 2007). "President Clinton impeached Dec. 19, 1998". Politico. Dicapai pada October 22, 2019.
  3. ↑ Riley, Russell L. "Bill Clinton: Domestic Affairs". millercenter.org. Charlottesville, Virginia: The Miller Center, University of Virginia. Dicapai pada October 22, 2019.

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