1. Whitten T, Henderson GS, Mustafa M (2002) The ecology of Sulawesi. The ecology of Indonesia series, vol. 4. Hong Kong: Periplus Editions.
2. Cenozoic geological and plate tectonic evolution of SE Asia and the SW Pacific: computer-based reconstructions, model and animations;R Hall;J Asian Earth Sci,2002
3. Coates BJ, Bishop KD (1997) A guide to the birds of Wallacea. Alderly, QLD, Australia: Dove publications.
4. Stattersfield AJ, Crosby NJ, Long AG, Wege DC (1998) Endemic bird areas of the world: priorities for bird conservation. Cambridge, UK: BirdLife International.
5. BirdLife International (2014) BirdLife International data zone. Available: http://www.birdlife.org/datazone.html. Accessed 2014 February 1.