• ITIS Indri indri
  • Monkeyland Primate Sanctuary – Creature Feature: Indri Lemur
  • Primate Info Net Indri Factsheets
  • Rare indri lemur born in forest reserve in Madagascar
  • Stalking the Rare Indri (archived 21 February 2012)
  • Indri: The critically endangered Singing Lemur (archived 27 February 2017)