Ponnamperuma, Senani. "About Sigiriya or Simhagiri". The Story of Sigiriya. Panique Pty Ltd. Archived from the original on 23 December 2016. Retrieved 9 March 2013.
Ponnamperuma, Senani. "About Sigiriya or Simhagiri". The Story of Sigiriya. Panique Pty Ltd. Archived from the original on 23 December 2016. Retrieved 9 March 2013.