Bushnell, David & Rex A. Hudson (2010) "The Society and Its Environment"; Colombia: a country study: pp. 87, 92. Washington D.C. : Federal Research Division, Library of Congress.
"Censusstatistieken 2012"(PDF). Algemeen Bureau voor de Statistiek in Suriname (General Statistics Bureau of Suriname). p. 76. Archived from the original(PDF) on 5 March 2016. Retrieved 26 November 2018.
"Censusstatistieken 2012"(PDF). Algemeen Bureau voor de Statistiek in Suriname (General Statistics Bureau of Suriname). p. 76. Archived from the original(PDF) on 5 March 2016. Retrieved 26 November 2018.