Tham khảo Dê_hoang

  • LONG JL 2003. Introduced Mammals of the World: Their History, Distribution and Influence (Cabi Publishing) by John L. Long (ISBN 9780851997483)
  • http://www.scirecordbook.org/feral-goat-south-america/
  • Wainwright, Martin (20 October 2011). "Northumberland's Neolithic goats brought into modern world". Guardian. London: Guardian News and Media Limited. Retrieved 30 October 2011.
  • "When It's Okay to Kill 80,000 Wild Goats". Smithsonian. Retrieved 2015-11-24.
  • "Galapagos Conservancy Blog". www.galapagos.org. Retrieved 2015-11-24.
  • "Exterminating the Goats of Galapagos - Modern Farmer". Modern Farmer. Retrieved 2015-11-24.