Central Intelligence Agency (2016). "Democratic Republic of the Congo". The World Factbook. Langley, Virginia: Central Intelligence Agency. Archived from the original on 10 August 2016. Retrieved 22 March 2020.
Central Intelligence Agency (2016). "Democratic Republic of the Congo". The World Factbook. Langley, Virginia: Central Intelligence Agency. Archived from the original on 10 August 2016. Retrieved 22 March 2020.