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Lewis R.Brenda.2014.Sejarah Gelap Raja dan RatuEropa.Jakarta: Elex Media Gramedia

http://www.digitaljournal.com/blog/11297

http://historyaccess.com/leopoldiiofbelgi.html

http://www.unofficialroyalty.com/leopold-i-king-of-the-belgians/

https://en.wikipedia.org/wiki/Duden_Park

http://www.newworldencyclopedia.org/entry/Leopold_I_of_Belgium

https://historicalscandals.wordpress.com/tag/leopold-i/